Female platypuses produce milk, but their mammary glands don’t protrude as nipples. Instead, they secrete milk much like our skin secretes sweat.
Baby Platypus © Faye Bedford via LandLearn NSW
The Platypus is a unique Australian species. Along with echidnas, Platypuses are grouped in a separate order of mammals known as Monotremes, which are distinguished from all other mammals because they lay eggs.