| Common Name | Taxonomic Name | Taxonomic Level |
| egg-laying monotremes | |
| platypus, echidna | |
| marsupial and placental mammals | |
| viviparous and pouched mammals | |
| kangaroo, koala | |
| viviparous and placental mammals | |
| shrews, hedgehogs, moles | |
| bats | |
| anteaters, armadillos, sloths | |
| | Common Name | Taxonomic Name | Taxonomic Level |
| rabbits, hares, pika | |
| squirrels, rats, woodchucks | |
| elephants | |
| odd-toed & hoofed: horses, rhinos | |
| even-toed & hoofed: deer, hippos | |
| cats, dogs, stoats, bears | |
| whales, dolphins | |
| seals, sea-lions, walruses | |
| lemurs, monkeys, humans | |
|