A mammal can be any number of warm-blooded animals of the Mammalia class in Biology. They have spines and often have hair on the skin. Females usually have glands for producing milk.
Orders
Monotremata (Marsupials)
Chiroptera (Bats)
Primates
Xenarthra
Lagomorpha
Rodentia (Rodents)
Cetacea
Carnivora
Proboscidea (Elephants)
- Mammoth
- Mastodon
Perissodactyla
- Horse
- Rhinoceros