By Kelsey Hamilton. Mammals are the only living organisms to have hair or fur. This helps to keep...

MAMMALSBy Kelsey Hamilton

GENERAL CHARACTERISTICS OF MAMMALS

Mammals are the only living

organisms to have hair or fur.

This helps to keep the mammal

warm.

All mammals have four-

chambered hearts.

Mammals are also endothermic

which means that no matter

what their surroundings are

they can maintain there body

temp.

MORE GENERAL CHARACTERISTICS

Mammals also have

mammary glands which

secrete milk. This aids in

the way mammals nurse

their young.

Mammals also have a sheet

of muscle called the

diaphragm. This allows the

chest cavity to expand

allowing the mammal to

breathe.

MORE GENERAL CHARACTERISTICS

Mammals also give live birth.

They also have a very developed brain

and nervous system which gives them the

ability to learn.

Mammals also have modified limbs.

They have different types of teeth which

are modified to the types of food they eat.

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