When we think of mammals, we usually think of animals that give birth to live babies, like lions or humans. But there’s a ...

The platypus is a mammal that lives in Australia on land and in rivers. Platypuses are one of the few mammals that lay eggs. Aquatic – Any animal that lives or feeds in water. Seals, dolphins ...

Monotremes, which are egg-laying mammals, are the oldest living mammalian lineage, and this finding by University of Adelaide sheds new light on their evolutionary trajectory. Though monotreme ...

Both usually produce few young at one time, and ensure their survival by caring for them. Unlike mammals, birds lay eggs and initial stages of development occur outside the mother’s body. Reproductive ...

Both usually produce few young at one time, and ensure their survival by caring for them. Unlike mammals, birds lay eggs and initial stages of development occur outside the mother’s body. Reproductive ...