Mammals are defined as having live babies, hair, and drinking milk from their mother. They breathe with lungs, many have four legs, and examples given include cows, monkeys, zebras, bats, lions, cats, and humans. The document repeats that mammals have live babies, hair, and provides examples of different types of mammals.

10. Mammals are vertebrates
Oh yeah!
Mammals have live babies
and mammals have hair.
Mammals drink their mother’s milk.
Oh yeah!
Mammals have live babies
and mammals have hair.
Mammals breathe with their lungs.
Oh yeah!
Mammals have live babies
and mammals have hair.
Most mammals have four legs.
Oh yeah!
Mammals have live babies
and mammals have hair.
A cow is a mammal.
A monkey is too. A zebra is a mammal.
A bat is a mammal. A lion is a mammal.
And so are you! A cat is a mammal.
Teacher Mavi Gil. Ceip Ramón Gaya de Santomera. 2012

11. http://www.youtube.com/watch?v=SSpKVUahz0I