British Mammal List
| Squirrels | Sciuridae |
| Dormice | Gliridae |
| Beavers | Castoridae |
| Voles | Cricetidae |
| Mice | Muridae |
| Hares and Rabbits | Lagomorpha |
| Hedgehogs | Erinaceidae |
| Moles and Shrews | Talpidae |
| Bats | Chiroptera |
| Cats | Felis |
| Dogs | Canidae |
| Walrus | Odobenidae |
| Seals | Phocidae |
| Mustelids | Mustelidae |
| Pigs | Suidae |
| Deer | Cervidae |
| Bovids | Bovidae |
| Balaen Whales | Balaenidae |
| Rorqual Whales | Balaenopteridae |
| Sperm Whales | Physeteroidea |
| Pygmy and Dwarf Sperm Whales | Kogiidae |
| Beaked Whales | Ziphiidae |
| Narwhal and Beluga | Monodontidae |
| Dolphins | Cetacea |
| Porpoises | Phocoenidae |