| Fish | 2110 |
|---|---|
| Amphibians | 1948 |
| Molluscs | 1871 |
| Birds | 1313 |
| Mammals | 1140 |
| Reptiles | 847 |
| Insects | 835 |
| Crustaceans | 723 |
| Corals | 236 |
| Arachnids | 21 |
| Velvet Worms | 9 |
| Others | 39 |
Sources:
, iucnredlist.org

| Fish | 2110 |
|---|---|
| Amphibians | 1948 |
| Molluscs | 1871 |
| Birds | 1313 |
| Mammals | 1140 |
| Reptiles | 847 |
| Insects | 835 |
| Crustaceans | 723 |
| Corals | 236 |
| Arachnids | 21 |
| Velvet Worms | 9 |
| Others | 39 |
Fish are the most threatened group of animals, with 2,110 fish species recognized as critically endangered, endangered, or vulnerable. Over 50% of the species recognized as threatened live part of their lives in water.