It is common in invertebrates, reptiles, amphibians, fish, and even birds. Platypusses glow blue-green, some flying squirrels glow pink, puffins beaks glow pink and white under UV light and a ...

Biofluorescent organisms are everywhere, from mushrooms to fish to reptiles and amphibians, but few birds have been identified as having glowing feathers. This is why biologist Rene Martin of the ...

The always colorful males light up with biofluorescence, sending off signals. A male Paradisaea rubra, or red bird-of-paradise.Credit...Rene Martin/American Museum of Natural History Supported by ...

Depending on the species, fluorescence showed up in different body parts, such as the birds’ bellies, chests, heads and necks. Some species had long, glowing plumes, gleaming bills, or sported ...

Biofluorescence was more present in males than in females, which ties into the idea that the glowing feathers are used to attract mates. “Male birds-of-paradise often have these patches next to ...

Surfing penguins, nesting kestrels and preening swans are among the scenes celebrated in this year's Bird Photographer of the Year competition. More than 23,000 photos were entered into the ...