Education · Extinction & what it teaches
Extinct Animals
Extinct animals are species with no living individuals left anywhere on Earth. This guide profiles 25 of them — from the dodo and thylacine to the baiji, lost in 2006 — with the documented cause of each extinction and the living species facing that same pressure right now.
- ~900
- Species formally documented as extinct since 1500 CE — a floor, not an estimateSource: IUCN Red List
- 27 years
- From scientific description to extinction for Steller's sea cow — the shortest interval on record
- 2006
- The baiji declared functionally extinct — the first cetacean lost to human activity
- 41%
- Of assessed amphibian species currently threatened with extinction — the most at-risk vertebrate classSource: IUCN Red List
Extinct, extinct in the wild, functionally extinct
These three terms are used interchangeably in everyday writing and mean very different things in conservation. The distinction decides whether anything can still be done.
EX
Extinct
No individuals remain alive anywhere, wild or captive. Declared only after exhaustive surveys of the known range find nothing.
Example: the dodo, the thylacine, the great auk.
EW
Extinct in the wild
Survives only in captivity or cultivation. No wild population remains, but the species is still here — and reintroduction is possible.
Example: scimitar-horned oryx, Père David's deer.
No formal category
Functionally extinct
Individuals survive, but too few to breed and recover. The outcome is settled while the animals are still alive.
Example: the northern white rhino — two females, neither able to carry a pregnancy.
More on the middle category: Extinct in the Wild species →
25 extinct animals, and what finished them
Ordered by extinction date, most recent first. Every profile gives the documented cause and the living species facing the same pressure today.
- Declared extinct 2011 (last seen 2006) Mammal
Western black rhino
Diceros bicornis longipes
The western black rhino was a subspecies of black rhino found in west-central Africa, declared extinct by the IUCN in 2011 after surveys in northern Cameroon found no surviving animals — poaching for horn was the sole significant cause.
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- Declared functionally extinct in 2006 Mammal
Baiji
Lipotes vexillifer
The baiji was a freshwater dolphin found only in China's Yangtze River, declared functionally extinct in 2006 after a six-week survey of the entire river found none — the first cetacean driven to extinction by human activity.
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- Declared Extinct by IUCN July 2022; last live sighting 2003; functional extinction by early 1990s Fish
Yangtze Paddlefish
Psephurus gladius
The Yangtze paddlefish (Psephurus gladius) was a giant freshwater fish endemic to China's Yangtze River, last seen alive in 2003 and declared Extinct by the IUCN in July 2022 after dams and overfishing erased a species that had already been functionally extinct since the early 1990s.
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- 6 January 2000 Mammal
Pyrenean ibex
Capra pyrenaica pyrenaica
The Pyrenean ibex, or bucardo, was a mountain goat of the Spanish Pyrenees whose last individual — a female named Celia — was killed by a falling tree on 6 January 2000; in 2003 a cloned bucardo was born and died within minutes, making it the first and so far only species to go extinct twice.
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- Last seen 15 May 1989; declared extinct 2004 Amphibian
Golden toad
Incilius periglenes
The golden toad was a brilliant orange amphibian found only in a 10 km² patch of Costa Rican cloud forest, last seen on 15 May 1989 and declared extinct in 2004 — the first extinction widely attributed to climate change and the chytrid fungus pandemic.
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- Last confirmed sightings 1970s; assessed Extinct by IUCN in 2008 Mammal
Javan Tiger
Panthera tigris
The Javan tiger was the tiger population endemic to Java, squeezed into remote forests by agriculture and hunting until the last confirmed animals disappeared in the 1970s; the IUCN assessed it as Extinct in 2008.
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- Last confirmed record 1974; extinct by the late 1970s Mammal
Japanese Sea Lion
Zalophus japonicus
The Japanese sea lion (Zalophus japonicus) was a western Pacific pinniped hunted to extinction; commercial harvests removed thousands in the early twentieth century, and the last confirmed animal was recorded in 1974 off Hokkaido.
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- Last well-documented records mid-20th century; assessed Extinct Mammal
Caspian Tiger
Panthera tigris
The Caspian tiger was a tiger population of river forests from the Caucasus and Iran through Central Asia, erased by hunting and clearance of tugai habitat; genetic work links it closely to the living Amur tiger, but the western population itself is extinct.
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- Last seen 1952; declared extinct 2008 Mammal
Caribbean monk seal
Neomonachus tropicalis
The Caribbean monk seal was the only seal native to the Caribbean, hunted for its oil from 1494 onwards and last seen in 1952 at Serranilla Bank; the United States formally declared it extinct in 2008, the first seal species lost to human causes.
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- Last confirmed specimen 1937; extinct by about the 1950s Mammal
Bali Tiger
Panthera tigris
The Bali tiger was a small island population of tiger endemic to Bali, hunted and squeezed into extinction; the last confirmed animal was a female shot on 27 September 1937, and the population was gone by about the 1950s.
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- Last undisputed US sighting 1944; IUCN still Critically Endangered (possibly extinct); USFWS has proposed treating it as extinct Bird
Ivory-billed Woodpecker
Campephilus principalis
The ivory-billed woodpecker was a large woodpecker of southern US and Cuban forests, last undisputed in the United States in 1944 after old-growth bottomlands were logged; the IUCN still lists it as Critically Endangered and possibly extinct, while US authorities have proposed treating it as extinct.
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- 1936 (last captive animal); declared extinct 1982 Mammal
Thylacine
Thylacinus cynocephalus
The thylacine, or Tasmanian tiger, was a striped carnivorous marsupial that went extinct in 1936 when the last known animal died in Hobart Zoo; a Tasmanian government bounty that paid out on 2,184 thylacines between 1888 and 1909 was the decisive cause.
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- 1918 (last captive, Incas, Cincinnati Zoo); declared extinct 1939 Bird
Carolina Parakeet
Conuropsis carolinensis
The Carolina parakeet was the only parrot native to the eastern United States; the last captive bird, Incas, died at the Cincinnati Zoo on 21 February 1918 after habitat loss, shooting and the pet trade erased flocks that once ranged across half the country.
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- 1914 Bird
Passenger pigeon
Ectopistes migratorius
The passenger pigeon was the most abundant bird in North America — an estimated 3 to 5 billion birds — and went from that number to extinct in roughly fifty years, with the last individual, Martha, dying at Cincinnati Zoo on 1 September 1914.
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- Last confirmed specimen 1914; extinct soon after Bird
Laughing Owl
Ninox albifacies
The laughing owl, or whēkau, was a New Zealand owl extinct after the last confirmed specimen in 1914; introduced predators and habitat change erased a ground-friendly endemic that had no defences against stoats and cats.
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- 1907 (last confirmed sighting) Bird
Huia
Heteralocha acutirostris
The huia was a New Zealand wattlebird extinct after the last confirmed sighting in 1907, famous for extreme sexual bill dimorphism; forest clearance, introduced predators and collecting for feathers erased a species found nowhere else on Earth.
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- 12 August 1883 Mammal
Quagga
Equus quagga quagga
The quagga was a southern African zebra with stripes only on its head, neck and forequarters, hunted out in the wild by the 1870s; the last individual died in Amsterdam Zoo on 12 August 1883, with no one aware at the time that the species had ended.
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- 1876 (last known animal killed) Mammal
Falkland Islands Wolf
Dusicyon australis
The Falkland Islands wolf, or warrah (Dusicyon australis), was the only native land mammal of the Falklands and was hunted to extinction by settlers; the last known animal was killed in 1876.
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- 3 June 1844 Bird
Great auk
Pinguinus impennis
The great auk was a flightless North Atlantic seabird — the original "penguin" — killed for its down, meat and oil until the last confirmed pair was strangled on the Icelandic island of Eldey on 3 June 1844, with the female's single egg crushed underfoot.
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- 1768 — 27 years after being described by science Mammal
Steller's sea cow
Hydrodamalis gigas
Steller's sea cow was a nine-metre marine mammal of the Bering Sea, discovered by Europeans in 1741 and hunted to extinction by 1768 — just 27 years, the shortest interval between scientific description and extinction of any large animal.
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- 1662 (last credible sighting) Bird
Dodo
Raphus cucullatus
The dodo was a flightless pigeon endemic to Mauritius that went extinct around 1662, less than a century after Dutch sailors arrived; introduced pigs, rats and macaques eating its ground-laid eggs killed it far faster than hunting did.
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- 1627 (last recorded individual, Jaktorów Forest, Poland) Mammal
Aurochs
Bos primigenius
The aurochs was the wild ox that gave rise to domestic cattle; the last recorded individual died in 1627 in Poland's Jaktorów Forest after centuries of hunting and habitat conversion erased a species that once ranged across Europe, North Africa and Asia.
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- c. 1445 — roughly 150 years after human arrival Bird
Moa
Dinornithiformes — nine species including Dinornis robustus
Moa were nine species of flightless birds endemic to New Zealand, the largest standing 3.6 m tall, driven to extinction around 1445 — approximately 150 years after Polynesian settlers arrived, making it one of the fastest megafaunal extinctions ever documented.
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- c. 4,000 years ago (final population, Wrangel Island) Mammal
Woolly mammoth
Mammuthus primigenius
The woolly mammoth was a cold-adapted elephant relative that died out across its mainland range around 10,000 years ago, with a final isolated population surviving on Wrangel Island in the Arctic Ocean until roughly 4,000 years ago — meaning mammoths were still alive when the Great Pyramid of Giza was built.
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- c. 10,000 years ago Mammal
Sabre-toothed cat
Smilodon fatalis
The sabre-toothed cat (Smilodon fatalis) was a heavily built predator with 18 cm canine teeth that went extinct around 10,000 years ago when the large ice-age herbivores it hunted disappeared — it was not a tiger and was not closely related to any living cat.
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Why animals go extinct
Six drivers account for almost every documented extinction. In practice they rarely act alone — habitat loss creates small isolated populations, and a second pressure removes their ability to recover.
| Driver | How it works | Historical case | Happening now |
|---|---|---|---|
| Habitat loss and fragmentation | Clearance for farming, logging, mining and development breaks a range into isolated pockets too small to sustain a population. | Woolly mammoth — the mammoth steppe collapsed and fragmented the herds. | The primary threat to orangutans, Asian elephants and tigers. |
| Overexploitation | Hunting, fishing and trade taken faster than a population can replace itself. Rarity raises the price, which accelerates rather than slows the take. | Great auk — killed for down, then killed harder once collectors wanted the last ones. | Driving pangolins, rhinos and totoaba, and with them the vaquita. |
| Invasive species | Introduced predators and competitors arrive somewhere nothing has evolved defences against them. Island species with low reproductive rates collapse in decades. | Dodo — pigs, rats and macaques ate the eggs. | The main threat to New Zealand's kākāpō, kiwi and takahē. |
| Disease | Pathogens moved between continents by trade and travel meet populations with no immunity, and can cross an entire range faster than any conservation response. | Golden toad — chytrid fungus, inside a protected reserve. | Chytrid affects over 500 amphibian species; facial tumour disease is consuming Tasmanian devils. |
| Climate change | Shifts in temperature and rainfall move habitat out from under species that cannot follow it — especially mountain, polar and cloud-forest specialists with nowhere higher or colder to go. | Golden toad — a rising cloud base dried its breeding pools. | Polar bears, coral reef systems, and every high-altitude endemic. |
| Small population effects | Below a threshold size, inbreeding, failed breeding behaviour and pure chance take over. The original threat stops mattering; the population simply cannot recover. | Pyrenean ibex — the last individual was killed by a falling tree. | The position of the vaquita, the Javan rhino and the northern white rhino. |
Every one of these is still happening
None of the extinctions on this page was inevitable, and none was caused by a force nobody understood at the time. Each one has a living counterpart facing the same pressure right now — and unlike the animals above, these can still be reached.
The species that recovered — the kākāpō from 51 birds, the Mediterranean monk seal from a few hundred, the black rhino from 2,400 — did so for one reason. Somebody funded the work before the population reached double digits.
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Lost: Dodo
Still here: Kākāpō
Critically Endangered
A flightless, ground-nesting, slow-breeding parrot on islands overrun by introduced predators — the dodo's situation almost exactly, except the kākāpō is still here. Intensive predator control and nest guarding have lifted it from 51 birds in 1995 to over 240.
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Lost: Thylacine
Still here: Tasmanian devil
Endangered
The thylacine's closest surviving relative, on the same island, now facing a transmissible facial cancer that has cut wild numbers by more than 80% since 1996. Insurance populations and disease-resistant breeding are the only things standing between it and the same ending.
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Lost: Passenger pigeon
Still here: Vaquita
Critically Endangered
The mirror image and the same lesson: roughly 10 animals remain, below any plausible density for recovery. The passenger pigeon proved that a population can be doomed while it still looks large — the vaquita is what the last chapter looks like when we can still see it happening.
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Lost: Woolly mammoth
Still here: Asian elephant
Endangered
The mammoth's closest living relative, now down to roughly 48,000–52,000 wild animals in fragmented pockets across 13 countries. The habitat fragmentation that finished the mammoth is the primary threat to the Asian elephant today — and this one can still be prevented.
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Lost: Great auk
Still here: Vaquita
Critically Endangered
Roughly 10 remain, drowning in gillnets set for totoaba, whose swim bladders rise in value with every fish removed. The great auk's extinction economics are running again in the Gulf of California, on a shorter timescale.
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Lost: Baiji
Still here: Indus river dolphin
Endangered
Another functionally blind freshwater dolphin in another heavily industrialised river system, facing the same combination of bycatch, irrigation barrages, boat traffic and pollution. Around 2,000 remain in a fraction of their original range — the baiji's position in the 1970s, with the outcome still open.
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Lost: Western black rhino
Still here: Javan rhino
Critically Endangered
Roughly 76 animals in one Indonesian national park — every Javan rhino on Earth in a single location, vulnerable to one poaching incursion, one disease outbreak or one volcanic event. This is the western black rhino's position in the 1990s.
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Lost: Steller's sea cow
Still here: Dugong
Vulnerable
Steller's sea cow's closest surviving relative, and an obligate seagrass grazer facing exactly the analogous problem: its food meadows are being lost to coastal development, dredging, boat scarring and warming seas. Some regional dugong populations are already listed as Critically Endangered.
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Lost: Quagga
Still here: Zebra
Endangered — Grévy's zebra
The quagga was a plains zebra, and its surviving relatives show the range of outcomes. Plains zebras remain widespread; Grévy's zebra has fallen from around 15,000 in the 1970s to roughly 2,000 in Kenya and Ethiopia, squeezed by livestock competition for grazing and water. The same pressure that ended the quagga, on a population we are actually counting this time.
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Lost: Golden toad
Still here: Glass frog
Varies — several species Endangered or Critically Endangered
Central and South American cloud-forest amphibians directly in the chytrid fungus's path, several with ranges as small as the golden toad's and the same dependence on constant humidity. Captive assurance colonies and habitat protection are the only defences that exist.
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Lost: Pyrenean ibex
Still here: Markhor
Near Threatened
A spectacular wild goat that was pushed to the edge by trophy hunting and livestock competition in the same way — and then recovered, from fewer than 2,500 animals to over 6,000, through community conservancy programmes in Pakistan and Tajikistan. It is the outcome the bucardo did not get.
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Lost: Caribbean monk seal
Still here: Grey seal
Least Concern — but locally vulnerable at pupping sites
The same vulnerability, on beaches people can walk onto. Grey seals haul out and pup at a small number of predictable sites, and disturbance there separates pups from mothers and causes abandonment. Protecting a handful of specific locations is what stands between a recovered population and a declining one — exactly the intervention the Caribbean monk seal never received.
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Lost: Moa
Still here: Kākāpō
Critically Endangered
New Zealand's surviving flightless giant — the world's heaviest parrot, flightless, slow-breeding, ground-nesting, and defenceless against the introduced stoats and rats that replaced human hunters. It survives only because every single bird is individually monitored on predator-free islands.
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Lost: Sabre-toothed cat
Still here: Snow leopard
Vulnerable
A specialist high-altitude predator whose survival depends entirely on wild sheep and goats that are themselves being displaced by livestock. Remove the blue sheep and ibex and the snow leopard has nowhere to go — the Smilodon problem, still solvable.
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Lost: Carolina Parakeet
Still here: Macaw
Varies by species — several Endangered or Critically Endangered
Large, cavity-nesting Neotropical parrots still hit by habitat clearance and the pet trade — the Carolina parakeet's pressures, still active where forests and enforcement are weakest.
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Lost: Yangtze Paddlefish
Still here: Sturgeon
Most species Threatened — several Critically Endangered
Slow-growing migratory fishes hit by dams, overfishing and caviar markets — the Yangtze paddlefish's pressures, still active wherever sturgeon rivers are fragmented.
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Lost: Bali Tiger
Still here: Tiger
Endangered
The Sumatran tiger is the last Sunda island tiger population — still facing poaching and forest loss on a finite island, the Bali problem before the ending.
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Lost: Aurochs
Still here: European bison
Near Threatened
A wild bovine reduced to a few dozen captives in the 1920s and recovered by breeding and reintroduction — the second chance the aurochs never received.
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Lost: Huia
Still here: Kākāpō
Critically Endangered
Another New Zealand endemic forest bird reduced to a handful of individuals by introduced predators — recovered only through intensive island management the huia never got.
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Lost: Ivory-billed Woodpecker
Still here: Woodpecker
Varies by species — many Least Concern; cavity specialists declining with old trees
Woodpeckers that depend on mature trees and snags lose breeding sites when forests are simplified — the ivorybill's pressure, scaled down to species still present.
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Lost: Japanese Sea Lion
Still here: Sea lion
Varies by species — several recovering under protection
Related Zalophus and other sea lions still face bycatch, disturbance and local hunting pressure — the same coastal harvest problem, still solvable where law and enforcement hold.
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Lost: Javan Tiger
Still here: Tiger
Endangered
Sumatran tigers are the remaining Sunda island population, still facing poaching and forest conversion on a finite island.
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Lost: Caspian Tiger
Still here: Tiger
Endangered
Amur and other living tigers still depend on connected habitat and prey — the Caspian failure mode wherever corridors are broken.
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Lost: Falkland Islands Wolf
Still here: Fox
Varies by species — many Least Concern; several threatened island and specialist foxes
Wild canids still killed as livestock threats — the warrah's pressure, still active wherever poison and persecution are the default response.
-
Lost: Laughing Owl
Still here: Kākāpō
Critically Endangered
Another New Zealand endemic driven nearly extinct by introduced mammals — held only by intensive predator-free management the laughing owl never received.
Fund the work that prevents the next one
World Animal Rescue Network funds partner-led rescue, habitat protection and anti-trafficking work in the places where these decisions are still open. Every extinction above had a solution that was understood and unfunded.
Keep reading
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Most endangered animals
The species closest to joining this list.
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Extinct in the wild
Species surviving only in captivity — and the reintroductions.
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Critically endangered
The IUCN's highest risk category for living species.
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What is an animal?
Definition, defining traits and the major animal groups.
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A–Z animals
Every species guide on the site, indexed by letter.
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Conservation glossary
Red List categories, CITES appendices and the terms behind them.