EVERYDAY SCIENCE

Detailed explanation-1: -Answer: All mammals have fur or hair, give birth to live young, have lungs and need air to breathe, are warm blooded, have four limbs if they live on land, and feed their babies milk from their breasts.

Detailed explanation-2: -Mammals are divided into three groups-monotremes, marsupials and placentals, all of which have fur, produce milk and are warm-blooded.

Detailed explanation-3: -Short and simple answer: mammals are animals that produce milk to feed their babies. Most of them also give birth (although the platypus and echidna, found in Australia, lay eggs). Their bodies are covered in hair rather than scales or feathers, or they are mostly hairless but descended from hairy ancestors.

Detailed explanation-4: -All mammals produce and secrete milk from mammary glands to feed their offspring. They also have hair on their bodies, although some mammalian groups have less hair than others.