Felidae (Pantherinae -lions, tigers-, Felinae -cats, ocelots-, ...)

Canidae (Canini -dogs, wolves-, Vulpini -foxes-, raccoons...)

Equidae (horses, donkeys, zebras...)

Cervidae (deers, muntjacs, elks, wapitis, reindeers...)

Ursidae (bears, polar bears, pandas...)

Cetacea (whales, dolphins, porpoises...)

Another mammal

Not a mammal (birds, reptilians, amphibians, fish, insects, arachnids...)