The International Union for Conservation of Nature estimates a quarter of mammals and more than two-fifths of amphibians are threatened with extinction

Endangered

Vulnerable

Critically endangered

Estimated threatened

Data deficient

Near threatened

Least concern

0%

20

40

60

80

100

Assessed comprehensively

Birds*

Mammals*

Sharks and rays

Reef-forming corals

Conifers

Amphibians*

Cycads*

Sampled assessment

Dragonflies

Ferns and relatives

Monocots

Reptiles

Selected subsets assessed

Bony fishes

Gastropods

Crustaceans

Dicots

Endangered

Vulnerable

Estimated threatened

Critically endangered

Near threatened

Least concern

Data deficient

0%

20

40

60

80

100

Assessed comprehensively

Birds*

Mammals*

Sharks and rays

Reef-forming corals

Conifers

Amphibians*

Cycads*

Sampled assessment

Dragonflies

Ferns and relatives

Monocots

Reptiles

Selected subsets assessed

Bony fishes

Gastropods

Crustaceans

Dicots