
Mammal
Pangolin
The world's only scaly mammal
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Saturday, 18 July 202622 species in the guide are facing an extremely high risk of extinction in the wild. Each profile leads with a direct answer to the most-searched questions.
Critically Endangered (CR) is the highest-risk category the IUCN Red List assigns to a wild species before Extinct in the Wild. It means a species faces an extremely high probability of extinction — usually because its population has collapsed, its range has shrunk drastically, or very few mature individuals remain. Species at this level typically depend on active conservation to survive.
Conservation categories follow the IUCN Red List. See the conservation hub for how every status compares.

Mammal
The world's only scaly mammal

Mammal
The largest living primate

Reptile
The tortoiseshell turtle

Mammal
Africa's hook-lipped browser in crisis

Bird
North America's largest flying land bird

Bird
Flightless nocturnal parrot of New Zealand

Fish
Living-fossil lobe-finned fish

Mammal
The smallest, hairiest — and rarest — rhino

Mammal
The rarest rhino on Earth

Amphibian
The salamander that never grows up and can regrow body parts

Mammal
Bulbous-nosed steppe antelope of Central Asia

Amphibian
World's largest amphibian

Fish
Giant ray with a toothed rostral saw

Fish
The shark with a head like a hammer

Amphibian
Critically Endangered orange gem of Madagascar

Fish
Critically Endangered lord of the open ocean

Fish
Critically Endangered shovel ray of sandy coasts

Invertebrate
Critically Endangered nacre snail of Pacific kelp

Mammal
The great ape of the Southeast Asian rainforest

Fish
The 100-year reproductive mystery that baffled scientists from Aristotle to the 21st century

Reptile
The fish-eating crocodilian with a long, narrow snout

Mammal
The world's most endangered marine mammal
Critically Endangered (CR) is the highest-risk category the IUCN Red List assigns to a wild species before Extinct in the Wild. It means a species faces an extremely high probability of extinction — usually because its population has collapsed, its range has shrunk drastically, or very few mature individuals remain. Species at this level typically depend on active conservation to survive.
The Global Animal Guide lists 22 species as Critically Endangered, including Pangolin, Gorilla, Hawksbill Sea Turtle, Black Rhinoceros, California Condor. See the full list below.