Does Japan Have a National Animal? Meet the Bird, Butterfly, Fish and More

What is your country’s national animal? And do you know how it earned that title — through an act of parliament, a scientific vote, or simply generations of shared affection?

Japan offers a particularly interesting case. The Green Pheasant is widely celebrated as the country’s national bird, and the Great Purple Emperor as its national butterfly — yet neither title was ever written into law. Some emerged through scholarly debate within learned societies; others through nothing more formal than folklore and long-standing cultural custom.

Behind each emblem lies a small, quiet story about how people in Japan have come to perceive, cherish and live alongside the natural world — shaped by taxonomy, folklore and, in one memorable case, a postage stamp.

Step inside our museum galleries as we explore how Japan’s “national” species came to represent the country, and what their histories reveal about Japan’s relationship with nature.

Meet the Museum Curatorial Team

Before we begin, let’s introduce the team guiding you through the galleries today.

What Do We Mean by Japan’s “National” Animals?

When people hear the phrase “national animal,” many picture a creature enshrined by an act of parliament, much like a national flag or anthem. In Japan’s case, that picture doesn’t quite fit.

No Japanese law has ever designated a national bird, butterfly, fish, or mammal. And here’s a detail worth holding onto as we go further: not even the species we’ll be exploring in this article gained their titles the same way. The Green Pheasant was selected as Japan’s national bird by the Ornithological Society of Japan in 1947. The Great Purple Emperor was named the national butterfly by the Entomological Society of Japan in 1957.

Both were decisions made by scientific societies, not by government. The Common Carp, by contrast, is widely called Japan’s “national fish” without ever having gone through a comparable formal selection — its status rests on culture and popular association rather than academic vote. The Japanese Serow has a different story again, tied to legal protection and conservation history rather than a title bestowed by any single body.

When societies did deliberate, considerations could include the species’ connection with Japan, its ecological or cultural significance, its familiarity to the public, and its place in the country’s natural heritage. That said, the history is rarely as tidy as a checklist. The Great Purple Emperor, for instance, had already been debated informally among entomologists since the 1930s, and its appearance on a commemorative postage stamp in 1956 became part of the story that culminated in the following year’s selection.

How Other Countries Choose Their National Animals

Japan’s approach becomes easier to appreciate once we look elsewhere. Around the world, national animals arrive at their status through a genuinely wide range of routes — some legal, some cultural, some almost accidental.

• United States — Bald eagle (national bird). Featured on the Great Seal since 1782, but only formally enacted into law in December 2024, through Public Law 118-206.
• United States — American bison (national mammal). Designated as the national mammal by the National Bison Legacy Act in May 2016.
• United Kingdom — European Robin (unofficial national bird). Widely described as Britain’s national bird after topping a 2015 public poll of over 224,000 voters, but never formally designated by law.
• France — Gallic Rooster. A cultural and historical emblem rooted in Latin wordplay (Gallus meaning both “Gaul” and “rooster”); never given formal legal status.
• India — Bengal tiger (national animal) and Indian peafowl (national bird). Both formally notified by the Indian government, most recently reconfirmed in 2011.
• South Africa — Springbok (national animal). Officially listed among South Africa’s national symbols, alongside the Blue Crane as national bird and the Galjoen as national fish.
• Canada — Beaver. Declared “a symbol of the sovereignty of Canada” by the National Symbol of Canada Act in 1975.
• Scotland — Unicorn. Traditionally regarded as Scotland’s national animal — a mythical creature used in Scottish heraldry since the Middle Ages.
• China — Giant panda. Widely regarded as a national treasure and China’s most recognisable living symbol, though not the subject of any specific “national animal” law.

Japan sits within that spectrum too. What makes its case unusually clear is that several of its best-known “national” species acquired their status through learned societies and long-standing custom, largely outside the formal machinery of government — not because Japan is the world’s sole exception, but because it offers such a clean example of how far cultural and academic recognition alone can carry a species.

Japan’s National Bird: The Green Pheasant

Walk through open country and rural edges in Japan in early spring, and you may suddenly be startled by a sharp, carrying call — ken, ken — followed by the sudden, drum-like beating of wings. That is the Green Pheasant (Phasianus versicolor), Japan’s national bird, announcing its territory.

The male is a striking bird: an iridescent, bottle-green breast, a bluish-purple sheen at the neck, and vivid red facial skin, all set off by a long, tapering tail. Its species name, versicolor (“many-coloured”), suits it well — the plumage shifts through several tones depending on the light. In spring, males perform a display called horo-uchi (母衣打ち), rapidly drumming their wings against their body to produce a sound that carries surprisingly far across open ground.

Watch: territorial wing-drumming (horo-uchi) performed by a male Green Pheasant

Here’s a detail that surprises many people, including some in Japan: the Green Pheasant’s status as a distinct species is a fairly recent scientific development. For years, it was classified as a subspecies of the widespread Common Pheasant (Phasianus colchicus), found across much of the Asian mainland. The 2024 edition of the Ornithological Society of Japan’s revised Check-list of Japanese Birds treats the Green Pheasant as a species distinct from the Common Pheasant. This taxonomic change also increased the number of bird species recognised as endemic to Japan.

The story of how this pheasant came to represent Japan begins not in an ancient court, but in the uncertain years just after the Second World War.

How the Pheasant Became Japan’s National Bird

The Green Pheasant was selected as Japan’s national bird in March 1947 — a decision made by the Ornithological Society of Japan, not by the Japanese government.

Twenty-two ornithologists gathered for the selection meeting on 22 March 1947.

This history matters, but it’s worth adding a note of accuracy here. The exact chain of events — how much the decision was driven by any single external recommendation, as opposed to a broader post-war interest in bird protection and nature education — is not entirely clear from the surviving accounts. Later retellings have sometimes presented the story as a straightforward response to a recommendation from the Allied occupation authorities, but the documented part of the story is the discussion and decision within the Ornithological Society of Japan itself.

The National Museum of Nature and Science’s catalogue of Japanese endemic species now lists sixteen endemic bird species, plus six additional species that breed only in Japan — a considerably richer picture than the 1947 committee had in front of them.

A Bird Woven into Japanese Life

Several strands came together in the pheasant’s favour, and they reveal something about how post-war Japan thought about a national symbol.

Biological value.

Endemism was the strongest card in the pheasant’s favour — a bird found nowhere else on Earth made an unusually clear symbol of Japan’s natural distinctiveness. It also helped that the pheasant is a year-round resident rather than a passing migrant, making it a familiar, everyday presence across the seasons rather than an occasional visitor.

Cultural value.

The pheasant’s connection to Japanese culture runs deep. It appears as a loyal companion in the folk tale Momotarō, and features in the Man’yōshū, Japan’s oldest surviving poetry anthology, compiled in the 8th century. The male came to represent courage; the female, fierce maternal devotion — an association still remembered today in a well-known saying.

A detail that might surprise modern readers: the pheasant was also a familiar game bird, valued as food across rural Japan. In 1947, this was not seen as a contradiction. If anything, its familiarity in both the countryside and hunting culture reinforced how deeply embedded it already was in everyday life — a reminder that a national symbol doesn’t have to represent untouched wilderness.

“The Pheasant in the Burning Field”

The Japanese phrase yakeno no kigisu — “the pheasant of the burning field” — captures a parent’s willingness to risk everything for its young, especially a mother’s devotion. Kigisu is simply an old word for pheasant. The saying is sometimes extended into a fuller phrase, “the pheasant of the burning field, the crane of the cold night,” pairing it with the image of a crane warming its chicks beneath its wings through a freezing night.

According to the traditional story behind the saying, pheasants nest in open grassland through spring and summer. If fire swept through that grassland — as could happen during controlled seasonal burning — a parent bird was said to spread its wings over the nest and stay put, shielding its eggs or chicks rather than fleeing, even at the cost of its own life.

A National Symbol, and a Modern Genetic Puzzle

More than seventy-five years after its selection, the Green Pheasant faces a challenge nobody at that 1947 meeting could have anticipated.

Japan’s pheasant population is divided into several regional populations, distinguished by subtle differences in plumage and geography. These regional populations are increasingly at risk of losing their distinct genetic character — not through interbreeding among themselves, but through hybridisation with a different species altogether. The Common Pheasant, including birds of Korean and other continental stock, has been released into parts of Japan for game hunting for decades. Because the two species are close relatives, they interbreed readily and produce fertile offspring, gradually blurring the genetic boundaries of Japan’s native populations in places where introduced birds have become established.

This isn’t a problem unique to pheasants. Similar genetic mixing, caused by well-intentioned but poorly considered releases, is a recognised concern for other Japanese species too, including the freshwater fish Ayu, the Japanese rice fish (Medaka), and fireflies. When a population that adapted over many generations to a specific local environment is diluted by outside stock, its resilience to disease and local conditions can weaken — a quiet threat to biodiversity that has nothing to do with a species being globally rare.

Still a Bridge Between Nature and Culture

Despite this quiet challenge, the Green Pheasant remains a genuine link between Japan’s natural and cultural life. It has been adopted as the official bird of numerous cities and towns across the country, and its resilient, everyday presence continues to make it a fitting emblem of the Japanese landscape.

In 1947, the pheasant was chosen partly because it seemed to embody something distinctly Japanese: a resident bird, familiar to ordinary people, rooted in literature and folklore, and closely tied to the countryside. Today, the same bird also reminds us that being “native” is not a fixed, unchanging status — taxonomy has shifted, our understanding of Japan’s biodiversity has expanded, and conservation now has to think about genetic relationships within a species, not only the number of individuals in the field.

Japan’s National Butterfly: The Great Purple Emperor

A large butterfly with a flash of blue-violet across its wings appears in Japan’s traditional countryside every midsummer. This is the Great Purple Emperor, Sasakia charonda — Japan’s national butterfly.

That title is worth clarifying from the outset: it is not a legal designation or a form of protected status. S. charonda was selected by the Entomological Society of Japan in 1957 as a species representing the country — a cultural and academic recognition, not a statute.

The choice makes considerably more sense once you meet the butterfly itself. Males have dark wings with an intense blue-violet sheen that flashes in and out of view as the light shifts. Females are larger but lack the male’s brilliant colour, wearing a subtler pattern of olive-brown instead. With a wingspan of roughly 75–110 mm, it ranks among the largest nymphalid butterflies in Japan. Adults feed almost entirely on the sap of oak trees such as Quercus acutissima and Quercus serrata, along with fermenting fallen fruit — flower nectar barely features in their diet at all.

A Name With Two Stories

The butterfly’s scientific name carries real history, though not all of it is equally certain.

It was first described in 1863 by the British entomologist William Chapman Hewitson, based on a specimen collected near Yokohama two years earlier by the British plant-hunter Robert Fortune. Hewitson placed it in an existing genus, Diadema, naming it Diadema charonda. In 1896, another British entomologist, Frederic Moore, recognised that the species didn’t quite fit that genus and established a new one especially for it: Sasakia, with charonda as its type species.

The genus name honours Chūjirō Sasaki (1857–1938), a pioneering figure in Japanese entomology — we’ll return to him shortly. The species name, charonda, is traditionally associated with Charondas, a lawgiver of Catania in Sicily who is generally placed in the 6th century BC, though the ancient sources disagree on the exact dates. Hewitson himself left no note confirming exactly what he had in mind, so this remains the traditional interpretation rather than a settled fact — one of entomology’s small, unresolved puzzles.

Chūjirō Sasaki: A Name Written Into a Butterfly

Chūjirō Sasaki worked during Japan’s rapid scientific modernisation, from the Meiji period into the early Shōwa era. As one of the first professors attached to the sericulture laboratories at the Imperial University’s College of Agriculture — later Tokyo Imperial University — he is credited with delivering Japan’s first proper lecture course in entomology, training a generation of researchers who followed.

Puddling is the behaviour in which butterflies drink from damp soil, shallow puddles or other moist surfaces. They are not simply taking in water: the liquid can contain dissolved minerals, especially sodium, and other nutrients that may be scarce in a diet of nectar or tree sap. In many butterfly species, males puddle most often; some of the nutrients they collect may later be passed to females during mating.

His research addressed thoroughly practical problems: identifying pests damaging apple orchards, and studying silkworm diseases in ways that helped push Japan’s silk industry to a world-leading standard. Less widely known is that, as a student, Sasaki took part in the excavation of the Ōmori Shell Mounds — generally regarded as Japan’s first scientific archaeological dig.

Frederic Moore’s decision to name the new genus after his Japanese colleague was, in effect, a piece of international scientific courtesy — a British entomologist choosing to honour a Japanese one at a time when such recognition crossed borders far less often than it does today. Sasaki’s own insect collection, including specimens of the very species that bears his name, is preserved today at the University of Tokyo’s University Museum.

What Is a Dedication Name, Exactly?

Naming a species after a person — what taxonomists call a dedication, or eponym — is one of biology’s oldest customs, stretching back roughly 270 years to the time of Linnaeus. Scientists use it to honour mentors, collectors, colleagues, or figures they admire, preserving that gratitude permanently within the language of science.

One long-standing unwritten rule goes with this custom: you don’t name a species after yourself.

Nothing technically prevents it, but doing so is considered rather poor form. A dedication is meant to be a gift of recognition given to someone else — naming a species after yourself would be a little like writing your own thank-you card. When it does happen, it tends to raise eyebrows across the scientific community precisely because it’s so rare.

Two well-known examples show how the tradition usually works. The element einsteinium, discovered in the debris of a 1952 thermonuclear test, was named for Albert Einstein in tribute to his contributions to physics. And in 2014, a rove beetle that Charles Darwin himself had collected in Argentina back in 1832 was finally described as a new species, Darwinilus sedarisi — its genus honouring Darwin, its species name honouring the writer David Sedaris, whose work had inspired the describing scientist’s own fascination with beetles.

Why the Great Purple Emperor Was Chosen

The idea of choosing a national butterfly for Japan first surfaced in 1933, when the entomologist Teiso Esaki proposed it at a meeting of the Butterfly Society. The discussion continued, on and off, for more than two decades.

By most accounts, the final debate came down to two strong candidates: the Great Purple Emperor and the widely familiar Swallowtail butterfly. The Swallowtail had real advantages — it was known nationwide, easily recognised by children and adults alike, and its flight was seen by many as embodying a particularly Japanese elegance. Two practical points, however, worked against it: its caterpillars feed on citrus leaves, making it a genuine agricultural pest — an awkward contradiction for a species meant to represent national pride — and it was considered by some in the committee simply too common and ordinary to serve as a distinguished symbol.

The Great Purple Emperor’s case rested on several strengths together: its size, striking blue-violet colouring, wide distribution across Japan, and a certain dignity of bearing that struck contemporaries as distinctly fitting. A commemorative postage stamp featuring the species, issued in 1956, had already raised its public profile in the year before the final vote — a small but telling piece of the story.

Japan’s “National Fish”: Carp, Koi and a Hidden Native Lineage

If Japan had an official national fish, you might expect something rare, endemic, or especially wild. Instead, one of the strongest candidates is a fish found in garden ponds, temple moats, village waterways and ornamental pools around the world: the carp.

In Japan, it is simply koi — and that small word has travelled remarkably far. Today, “koi” is recognised internationally as the name for brilliantly coloured ornamental carp, nishikigoi. Yet the story behind Japan’s so-called national fish is far more complicated than those graceful colours suggest.

There is a serious conservation story beneath the surface. A genetically distinctive Japanese native carp lineage has been heavily affected by the spread and hybridisation of introduced Eurasian and domesticated carp lineages. In Lake Biwa, however, a comparatively little-mixed native population persists in deep offshore water and is recognised as a Threatened Local Population on Japan’s Red List.

A National Fish That Was Never Formally Selected

The Green Pheasant has a clear moment of selection: in 1947, the Ornithological Society of Japan chose it as the national bird. The Great Purple Emperor likewise has a documented selection by the Entomological Society of Japan.

The carp has no equivalent event.

There is no known formal decision by the Ichthyological Society of Japan declaring carp to be Japan’s national fish. Instead, its status has emerged from centuries of cultural familiarity and association.

Carp have long been part of life in the Japanese archipelago. Archaeological sites have yielded carp remains, and the fish has been valued as food for centuries. Its best-known cultural role appears every May in koinobori, the carp-shaped streamers flown for Children’s Day.

The image comes from an old East Asian story in which a carp that swims up a waterfall becomes a dragon. In Japan, it became a wish that children would grow healthy, brave and able to overcome difficulties.

From Food Fish to “Living Jewel”

It is important to distinguish ordinary carp from nishikigoi, the ornamental coloured varieties that many people outside Japan simply call “koi”.

In the early nineteenth century, during the late Edo period, colour mutations began to appear among carp raised as food in the mountain villages of Yamakoshi, in what is now Nagaoka, Niigata Prefecture. Breeders selected and crossed these unusual fish over generations, developing increasingly distinctive patterns of red, white, black, gold and blue.

The result is an extraordinary example of selective breeding turning a food fish into a living art form. Today, nishikigoi are often described as “living jewels”, and their major varieties include Kōhaku, Taishō Sanshoku and Shōwa Sanshoku.

At the extreme end of the market, an exceptional female Kōhaku known as S Legend sold at a 2018 auction in Hiroshima Prefecture for ¥203 million. That was a record-setting, highly unusual sale — not the ordinary price of a koi — but it shows the international prestige these fish can command.

Two Very Different Stories

The ornamental fish admired around the world as Japanese koi belongs to a wider carp group that can become a serious ecological problem when introduced outside its native context. Carp are included in the Invasive Species Specialist Group’s list of “100 of the World’s Worst Invasive Alien Species”, because invasive populations can disturb sediments, cloud water, alter aquatic plants and disrupt native freshwater communities.

That does not mean every carp is “bad”, nor does it mean that Japan’s native lineage should be treated as an invasive species in its own home waters.

DNA Reveals a Hidden Japanese Carp

For more than a century, people had noticed two broad forms of carp in Japanese waters: a relatively slender “wild type” and a deeper-bodied “cultivated type”, more like farmed carp.

Modern mitochondrial and nuclear-DNA analyses revealed that the difference was not merely cosmetic. The slender wild type represents a genetically distinctive Japanese native lineage. The deeper-bodied type is associated with introduced and domesticated Eurasian lineages.

Across much of Japan, hybridisation has made this history difficult to read. Introduced carp lineages have spread widely through aquaculture, food production and stocking, especially since the modernisation of fisheries in the late nineteenth and early twentieth centuries. Their descendants can look much like native carp while carrying mixed ancestry.

Lake Biwa offers one of the clearest remaining windows into the older story. In one study of carp sampled from waters deeper than 20 metres offshore, more than 80 per cent carried mitochondrial DNA associated with the Japanese native lineage. Nuclear-DNA studies also indicate that these deep-water fish have experienced comparatively limited hybridisation.

How Did the Lineages Become Mixed?

One important chapter began in the early twentieth century. In 1904, mirror carp and leather carp from Germany were introduced to Japan to improve food-carp production. These fast-growing fish later became part of aquaculture and breeding programmes, and German carp also contributed distinctive scale patterns to some ornamental koi varieties.

That single event does not explain every instance of genetic mixing seen in Japan today. But it illustrates a larger pattern: moving fish for food production, stocking or ornament can have consequences that continue for generations after the original purpose has been forgotten.

Protecting More Than a Symbol

The conservation question is not simply whether carp remain plentiful. In many waters, they do. The question is whether Japan’s genetically distinctive native lineage — and the habitats it needs to breed — can survive.

Researchers use genetic markers to identify native ancestry and monitor where it remains. Conservation also depends on protecting spawning habitat: reed beds, connected waterways and seasonally flooded shallow margins. Just as importantly, it means avoiding further releases of non-native or genetically mixed carp into natural waters.

The Lake Biwa Museum and other research institutions are helping to maintain threatened freshwater fish through research, collection management, breeding and public education. The National Institute for Environmental Studies continues to study the distribution, spawning ecology and habitat use of native fishes in Lake Biwa.

A “National Fish” With Two Histories

The carp may be Japan’s least straightforward national symbol. It is a cherished food fish, a Children’s Day emblem, a globally admired ornamental animal, and a fish that can cause serious ecological problems when introduced to the wrong waters.

At the same time, Japan’s own native carp lineage has been affected by hybridisation with introduced stock. Its survival is a reminder that culture and conservation cannot be separated neatly.

Japan’s “National Animal”: The Japanese Serow

Deep in Japan’s mountain forests lives an animal that seems to belong to an older landscape. With a compact body, sturdy legs and short, unbranched horns, the Japanese Serow, Capricornis crispus, can stand almost motionless on a steep slope, watching quietly from the edge of the trees.

It is an animal sometimes described as Japan’s “national animal”. But, as with the Common Carp, that phrase needs a little care.

Japan has not formally designated the Japanese Serow as its official national animal. Nor is there reliable evidence that the Mammal Society of Japan formally selected it for that role. Its special place comes instead from a combination of endemism, cultural association and unusually strong legal protection.

The Japanese Serow is found naturally nowhere else on Earth. It is also the only wild bovid native to the Japanese archipelago — although its closest familiar relatives are goats and sheep rather than deer.

Japanese Serow are usually solitary and territorial. Both males and females carry small horns, and their powerful legs make them well suited to forested mountains, rocky slopes and steep ground.

A Symbol With Legal Protection

From the late nineteenth century into the early twentieth century, people hunted it for meat and hides. By the first half of the twentieth century, it had become so scarce that it was sometimes described as a “phantom” of the remote mountains.

The Japanese government designated it a Natural Monument in 1934. In 1955, it was given the stronger status of National Special Natural Monument under the cultural-property system.

Historical estimates from around that time suggested that only a few thousand animals remained nationwide. These figures should be treated cautiously: a precise nationwide count was not possible then. What is clear is that hunting pressure had severely reduced the species.

The serow’s symbolic importance also reflects its habitat. Mountain forests have long held a special place in Japanese cultural and religious traditions. An animal that lives quietly among steep slopes and remote woods came to represent an enduring image of Japan’s mountainous natural heritage.

Recovery Changed the Question

Protection worked. Hunting pressure declined, and populations in much of Honshu recovered substantially during the later twentieth century.

Surveys from 1978 estimated 75,000–90,000 serow nationwide; a 1984 estimate was about 100,000. These are historical national estimates, not current population totals. Japan has not produced an equivalent nationwide count in recent decades.

The recovery was a genuine conservation success. Yet it also brought new challenges.

In some parts of central and northern Japan, serow expanded into areas with commercial forests and farmland. They can browse young trees, including planted conifers, as well as fruit trees and other crops. In those areas, the animal came to be seen not only as a protected mountain species, but also as a source of practical conflict.

One Species, Uneven Fortunes

Some populations have recovered strongly. Others remain small, isolated or declining. The contrast is especially clear in Kyushu.A special survey conducted in 2018 and 2019 estimated that about 200 Japanese Serow remained in the mountains of Kumamoto, Miyazaki and Ōita prefectures. This was roughly one tenth of the estimate made about 25 years earlier.

The decline cannot be explained by one cause alone. Likely pressures include habitat fragmentation, changes in forest vegetation, accidental capture in traps set for other animals, disease, and competition for food with Sika Deer, Cervus nippon, in some areas.

The historical extinction of the Japanese Wolf is sometimes mentioned in discussions of Japanese ungulates. However, it would be too simple to treat the loss of one predator as the explanation for today’s regional differences. Modern serow conservation depends on evidence from each landscape.

This is why several regional populations—including those in Kyushu, Shikoku, the Kii Mountains and the Suzuka Mountains—are listed in Japan as Threatened Local Populations, or LP. That label does not mean the species is disappearing throughout Japan. It means that a geographically distinct population faces a high risk of local extinction.

Protection and Management

As a National Special Natural Monument, the Japanese Serow receives exceptionally strong legal protection. Capturing, injuring or killing one without the necessary authorisation is prohibited.

That does not mean action is impossible wherever serious forestry or agricultural damage occurs. Under the relevant procedures, local authorities may obtain permission for regulated capture or population-management measures. Decisions should take account of local abundance, habitat condition, damage levels and the conservation needs of neighbouring populations.

This makes serow management more demanding than a simple choice between “protect” and “remove”.

• Where numbers are low, priorities may include habitat protection, monitoring and preventing accidental deaths.
• Where browsing damage is persistent, priorities may include protecting plantations and crops while assessing the local population carefully.
• In every case, management needs reliable field data rather than assumptions based on the species’ national reputation.

More Than a Symbol

The Japanese Serow is found nowhere else naturally. It is a National Special Natural Monument, a survivor of severe hunting pressure, and a familiar symbol of Japan’s steep, forested mountains.

It is also a reminder that conservation is not static. Protection allowed many serow populations to recover. Now Japan faces a more complex responsibility: reducing conflict where numbers are high, while preventing local disappearance where populations are fragile.

From a rarely seen animal of the remote mountains to a protected national treasure, and then to an animal requiring careful local management. That is quite a journey for one quiet mountain dweller.

Symbol, Monument or Endangered? How Wildlife Protection Works in Japan

Having met some of the animals associated with Japan—the Green Pheasant, the Great Purple Emperor, the Common Carp and the Japanese Serow—a natural question arises.

What about frogs, snakes, lizards, bats and all the other creatures that have never been given a “national” title? Does Japan have a national reptile or a national amphibian? And how do terms such as Natural Monument and Red List fit into the picture?

The short answer is that Japan has no single system for deciding which animals are important. Different institutions recognise wildlife for different reasons—and those reasons should not be confused.

Not Every Group Has a National Representative

Japan has no officially recognised national reptile or national amphibian. There is also no widely established equivalent to the Green Pheasant or Great Purple Emperor for these groups.

That does not mean reptiles and amphibians matter less. It simply reflects the different roles of scientific societies and conservation institutions.

The Herpetological Society of Japan supports research and conservation concerning reptiles and amphibians. It also recommends standard Japanese names for species found in Japan. Selecting a ceremonial representative for every major group is not a general feature of Japanese zoology.

The Green Pheasant and the Great Purple Emperor became national symbols in a particular historical setting: the decades after the Second World War, when interest in natural history, education and Japanese cultural identity was especially strong.

Three Different Questions

The easiest way to understand Japan’s wildlife systems is to keep three questions separate.

System	The question it asks	What it does	Direct legal protection?
National symbol	What animal has come to represent Japan culturally or socially?	Gives a species symbolic or representative status	Usually no
Natural Monument	What part of Japan’s natural heritage has special scientific or cultural value?	Officially designates and protects natural heritage, including animals, plants, habitats and geological features	Yes
Red List	How high is a species’ or population’s risk of extinction?	Assesses conservation status and helps guide conservation policy	No, not by itself

A species can belong to more than one category. The Japanese Serow is a useful example: it is associated with Japan as a symbolic animal, is protected as a National Special Natural Monument, and has also been assessed from a conservation perspective. These labels overlap, but they do not mean the same thing.

Natural Monuments: Nature as Heritage

Japan’s Natural Monument system, Tennen Kinenbutsu, is part of the cultural-property protection system. That may sound surprising at first: why would wildlife be protected through cultural-property legislation?

The answer is that Japan treats some parts of nature as heritage. Natural Monuments can include animals, plants, habitats, geological formations and minerals that are especially valuable for understanding Japan’s natural history.

They are not designated simply because they are rare. Their value may come from scientific importance, a distinctive relationship with a landscape, a remarkable local population, or a long connection with culture and history.

The system also includes a stronger category: the Special Natural Monument. The Japanese Serow is one example. The Crested Ibis and Oriental Stork are others.

The Onagadori, a traditional Japanese breed of long-tailed chicken, is another Special Natural Monument. It is not a wild species, which makes an important point: Natural Monument status is about heritage value, not simply wildness or extinction risk.

Under the Cultural Properties Protection Act, actions that could alter a designated Natural Monument or affect its preservation generally require authorisation. For designated animals, unauthorised capture or harm may be restricted.

Red Lists: A Scientific Warning System

A Red List answers a different question again: how great is the risk that a species—or a distinct population—could disappear?

Japan’s Ministry of the Environment assesses wild species using evidence such as their distribution, population trends, habitat change and known threats. The result is a Red List category: a scientific assessment of extinction risk, based on evidence rather than cultural prestige.

The categories include:

• EX — Extinct
• EW — Extinct in the Wild
• CR — Critically Endangered
• EN — Endangered
• VU — Vulnerable
• NT — Near Threatened
• DD — Data Deficient
• LP — Threatened Local Population

A Red List category is not a cultural honour. Nor does Red List status, by itself, automatically prohibit capture, trade, development or habitat loss.

Red List assessments can inform other measures. For example, some species may also be designated under Japan’s Act on Conservation of Endangered Species of Wild Fauna and Flora, which can impose legal restrictions on capture, possession and trade.

A Snake With No National Title

The Sakishima Beauty Snake, Elaphe taeniura schmackeri, is a useful example.

It has no national title, and its Red List status does not automatically make it a Natural Monument. Yet it is listed as Vulnerable (VU) in Japan’s current national Red List because of its extinction risk.

Its value does not depend on being a national symbol. It is part of the distinctive wildlife of the Sakishima Islands, and its Red List category signals that its wild population needs careful attention.

The Great Purple Emperor offers a different combination. It is Japan’s national butterfly and is listed as Near Threatened on the national Red List, but its cultural title does not itself create legal protection.

The Japanese Serow offers another. It is often treated as a cultural national animal, and it is a Special Natural Monument. Yet its global IUCN assessment is Least Concern, while several regional Japanese populations are recognised as Threatened Local Populations.

A Moving Picture

Japan is publishing its fifth national Red List in stages, with different groups assessed on different schedules. Updated assessments for birds, reptiles and amphibians were released in March 2026, while other groups continue to follow their own assessment timetable.

This means that a conservation category should always be checked against the latest assessment for the particular group concerned. A label in an older field guide, website or museum panel may no longer be current.

More Than One Way to Care

Japan’s wildlife is not protected by one grand title or a single list.

National symbols tell stories about culture and identity. Natural Monuments recognise parts of the natural world as heritage worthy of legal protection. Red Lists provide a scientific warning about extinction risk. Other laws can then create specific restrictions and conservation measures.

Living with Nature: What Japan’s “National” Animals Can Teach Us

The Green Pheasant became a national bird through a decision by a scientific society. The Great Purple Emperor became a national butterfly through a similar act of academic recognition. The Common Carp acquired its symbolic status through centuries of cultural association rather than any formal selection. The Japanese Serow became one of Japan’s most strongly protected wild animals through the Natural Monument system, even though no learned society ever declared it a “national animal”.

Taken together, these stories reveal something more interesting than a simple list of Japan’s national creatures. They show how culture, science, law and everyday life can shape the way people relate to wildlife—sometimes in the same direction, sometimes in tension with one another.

That distinction matters. A species may be culturally beloved without being endangered. Another may be legally protected without being rare nationwide. A third may be declining in one region while thriving in another.

Four Emblems, Four Ecological Realities

Each species we have explored also points to a genuine, ongoing conservation challenge.

• Green Pheasant: its taxonomic status has shifted in recent years, as researchers reassess its relationship with other pheasant populations across East Asia. Even a familiar national symbol can be re-evaluated as scientific understanding develops—and distinguishing genuinely native populations from introduced or hybridised stock remains an important part of that work.
• Great Purple Emperor: its fortunes are closely tied to satoyama, the traditionally managed woodlands where farmers once coppiced oak and other deciduous trees. Without that regular cutting, the canopy closes over, shading out the host plants its caterpillars depend on.
• Common Carp: centuries of stocking, food-fish farming and the ornamental koi trade have blurred the boundary between Japan’s native carp lineage and introduced Eurasian and domesticated stock, leaving genuine native ancestry difficult to trace outside a few refuges such as Lake Biwa.
• Japanese Serow: conservation success has not been uniform. Populations in parts of central Honshu have recovered enough to damage forestry plantations, while populations in Kyushu and other western regions remain small, fragmented and vulnerable.

Protection Is Not Always Straightforward

There is another lesson hidden in these stories: measures designed to protect wildlife can create difficult choices for the people living alongside it.

A protected species may damage crops or forestry plantations. A well-intentioned release programme may unintentionally alter the genetic makeup of a wild population. A habitat that once supported rich biodiversity may depend on continued human management—and grow poorer once that management stops.

参考・引用

日本の国の象徴とされる生き物とは？

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「国の象徴動物」から学ぶ、自然との共生

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