Tag: Platypus Milk

Platypuses are full of surprises, and here’s another one—they don’t have nipples, but they still nurse their babies with milk! As monotremes, platypuses are egg-laying mammals, which already makes them pretty unusual. But unlike most mammals that have nipples for breastfeeding, platypuses have a completely different system. Their milk oozes out of mammary gland ducts…