# data[].attributes.body
Placental Mammals are the main group of mammals. The young are born well developed, having spent a period of time getting nutrition from the placenta inside the mother.

Marsupials give birth to poorly developed young. After birth, the baby continues to develop and grow in a special pouch on its mother, where it feeds milk.

Monotremes are a small group of egg-laying mammals with similarities to reptiles and birds. Their young are fed on milk from their mothers. Only three mammals exist in this group: the platypus and two species of echidna

# data[].attributes.body
Being warm blooded
Having a layer of fur or fat as an insulation to keep them warm
Giving birth to live young
Having young that are nourished milk from their mothers mammary glands
Having external ear flops
Lungs to breath

# data[].attributes.body
Mammals give birth, feed babies milk, warm blooded, mammals can live in sea and land, mammals don't have to stay in hot or cold places to sustain their body temperature mammals don't lay eggs, mammals have hair