Question

Platypus lay eggs but are considered as mammals. Why?

Answer 1

Platypus belongs to the class Mammalia. Mammals give birth to young ones without laying eggs. Platypus is an exception to this characteristic. It is an egg-laying mammal.

Platypus is considered a mammal as it has other mammalian features:

• It is warm-blooded.
• It has mammary glands that produce milk to nourish its young ones.
• It has body hair.