We know that platypuses are weird enough that even scientists are baffled by their existence, but can these egg-laying mammals get any weirder? It turns out they can. When scientists put platypuses under UV light, they discovered that these mammals glow green and blue.
Listen beautiful relax classics on our Youtube channel.
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 specimen was a big surprise.
Biofluorescence — absorbing and re-emitting light as a different color — is widespread in fish, amphibians, birds and reptiles. But the trait is much rarer in mammals, and this is the first evidence of biofluorescence in egg-laying mammals, also known as monotremes, scientists reported in a new study.
Learn more about why platypuses are strange over at Live Science.
(Image Credit: Mammalia 2020; 10.1515/mammalia-2020-0027/ Live Science)