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…
Platypuses just keep getting weirder—they glow in the dark! In 2020, scientists at Northland College in Wisconsin discovered that platypus fur glows a greenish-blue color under UV light, a trait called biofluorescence. They were studying museum specimens when they noticed the glow, and later confirmed it in live platypuses too. This makes them one of…