IUCN Red List: CR

Critically Endangered Species

Extremely high risk of extinction in the wild. Showing 9 species currently cataloged under this conservation tier.

CRCritically Endangered ENEndangered VUVulnerable NTNear Threatened LCLeast Concern DDData Deficient CDConservation Dependent

African Wild Ass

African Wild Ass

Equus africanus

Diet: Herbivore
Wild lifespan: Often 20 years or more under favorable conditions

Amur Leopard

Amur Leopard

Panthera pardus orientalis

Diet: Carnivore
Wild lifespan: Up to about 12 years

Aruba Island Rattlesnake

Aruba Island Rattlesnake

Crotalus unicolor

Diet: Ambush predator of small vertebrates
Wild lifespan: Wild longevity is uncertain; managed rattlesnakes may live well over a decade

Axolotl

Axolotl

Ambystoma mexicanum

Diet: Carnivore
Wild lifespan: Poorly documented in the remnant wild population

Chinese Alligator

Chinese Alligator

Alligator sinensis

Diet: Carnivore
Wild lifespan: Not reliably established here

Egyptian Tortoise

Egyptian Tortoise

Testudo kleinmanni

Diet: Herbivore feeding on desert annuals and perennial plants
Wild lifespan: Several decades; often 30–50 years under suitable managed care

Golden Lancehead

Golden Lancehead

Bothrops insularis

Diet: Ambush predator specializing in migratory birds as an adult
Wild lifespan: Poorly known in the wild; likely more than 10 years for surviving adults

Great Hammerhead Shark

ChondrichthyesCR

Great Hammerhead Shark

Sphyrna mokarran

Diet: Carnivore
Wild lifespan: Common estimates exceed 30 years, with some individuals aged beyond 40 years

Xico Deermouse

Xico Deermouse

Habromys simulatus

Diet: Poorly documented omnivore
Wild lifespan: Unknown