After an egg hatches, the tiny baby drinks its mother's milk, which comes from tiny openings in the mother's belly. They have a life span of 10-17 years.
Platypus live in burrows and spend much of their time in freshwater ponds and streams.
The Duck-billed Platypus is about the size of a pet cat. The legs sprawl out to the side of the body, giving it a lizard-like walk. It can store food in cheek pouches while it is hunting underwater.