Are Platypuses mammals?
Yes. The platypus is a semi- aquatic mammal only found in Australia. It is a monotreme, that is, an egg-laying mammal. As a mammal, it produces milk to nourish its young. Platypuses are one of a very few species of egg-laying mammals, known as monotremes. They are still mammals because they suckle their young, are warm-blooded, and have a coating of fur.