A blue-green glow adds to platypuses’ long list of bizarre features

Between the electricity-sensing bill, venomous heel spurs and egg laying, the platypus was already one of the strangest mammals alive today (SN: 5/8/08). Now, researchers have found that this Australian oddity has another unexpected feature: It fluoresces under ultraviolet light. Platypuses’ dense, waterproof fur absorbs ultraviolet light and emits a blue-green glow, mammologist Paula Spaeth […]

Platypuses glow an eerie blue-green under UV light

Duck-billed, egg-laying platypuses just got a little weirder: It turns out their fur glows green and blue under ultraviolet (UV) light. Under visible light a platypus’s extremely dense fur — which insulates and protects them in cold water — is a drab brown, so the trippy glow revealed under UV light on a stuffed museum […]