Species on the edge

The first documented mammal extinction driven primarily by human-caused climate change. A small rodent on a small cay, erased by water.

Bright orange, abundant, then gone in a handful of seasons. A warning shot for the global amphibian collapse.

Once the most abundant bird in North America — flocks that darkened the sky. Billions to zero in a century. The scorecard’s wildlife F is not a metaphor. This is the exhibit.

Declared extinct in 2025 — the first global bird extinction in mainland Eurasia and Africa in recent centuries. Thirty years of searching after the last photograph did not produce another bird.

A subspecies hunted out after surveys in Cameroon found none. The horn trade did not need a whole species. It took a unique lineage and left the others hanging on.

A desert antelope built for places with no water. Civil conflict and oil tracks opened the last range to hunters.

Split from the savanna elephant and listed as Critically Endangered in 2021. A gardener of the Congo forest — seeds do not plant themselves.

The rarest big cat. Camera traps in Land of the Leopard National Park show a slow climb from a few dozen animals — proof that a park with rangers is not a metaphor.

Famous in tanks, nearly gone in the only lake it belongs to. Captive abundance is not a wild population.

Still critically endangered, and also one of conservation’s real comebacks. Intense anti-poaching and translocations pulled it off the floor.

A half-pound primate with a white punk crest, found nowhere else on Earth. Colombia’s dry forest has been cut to a remnant, and tens of thousands of tamarins were exported for labs and the pet trade in the last century.

The rarest gorilla. Small groups persist on forested hills that hunting trails still reach.

A fish-eating crocodile with a ghara on the snout. Reintroduction is working in a handful of rivers; most of the historic range is empty.

Hunted for jewelry. The shell is still sold, legally in some places, illegally in most.

The entire species lives in one coastal park next to a volcano. There is no backup population. A wave, a disease, or one determined poacher could end the line.

A nocturnal, flightless parrot pulled from the edge by a country that decided one species was worth a national project. Every bird has a name.

Functionally extinct in the wild. The last male, Sudan, died in 2018. Scientists are attempting IVF with southern white rhino surrogates — a last-ditch technology for a subspecies we did not protect in time.

One of the world’s largest eagles, tied to forest that keeps being cut. Each pair needs a huge territory.

Discovered by science in 1992, already sliding out of it. Camera-trap photos are rare; no saola has been seen by a biologist in the wild for years.

Almost gone from the wild while abundant in crocodile farms — often hybridised, so the farm is not a ark.

A great ape losing forest faster than it can reproduce. Females have a single infant every 7–9 years. That math does not survive a plantation.

The last island tiger. Bali and Java’s tigers are already gone.

The world’s smallest porpoise, and the most endangered marine mammal. 2025 surveys found animals still reproducing inside the Zero Tolerance Area — the collapse slowed, it did not reverse.

The only porpoise in a river. Its cousin, the baiji, is already gone. A 2022 census showed the first increase in decades after fishing bans.

The largest animal that has ever lived. Whaling nearly ended it. Some populations are climbing; others have not returned.

Our closest living relative, listed Endangered. Four subspecies, all going the wrong way.

A mixed ledger: legal protection and nest programs have brought some beaches back; others are still emptied every season.

Downlisted from CR to EN in 2018 after habituation-based tourism funded ranger protection. Still endangered. Still the best great-ape recovery story we have.

Not a panda, not a raccoon. A forest specialist whose bamboo understory is being cleared from under it.

The largest fish. Slow, surface-feeding, easy to hit with a hull.

Downlisted from Endangered to Vulnerable in 2016 after decades of reserve expansion. Still not safe — bamboo is a specialist diet in a warming mountain range.

From 62 mature animals in 2001 to more than 2,000 today. IUCN downlisted it from Endangered to Vulnerable in June 2024 — one of the clearest large-carnivore recoveries on record.

A climate species, listed as Vulnerable because the ice it hunts from is a season that keeps shrinking.

Downlisted to Vulnerable in 2017 — a data correction as much as a recovery. The cat is still in trouble; we just counted better.