Male Galápagos yellow warblers appear to be shifting their behavior and adjusting their calls in response to the din of ...

This striking plume of yellow is the fluorescing tail feathers of a male emperor bird-of-paradise (Paradisaea guilielmi). Birds-of-paradise are known for their bright colours and courtship displays.

The feathers of birds of paradise contain fluorophores ... Most species ended up glowing green or yellow-green. Males had the most biofluorescent plumage, which was observed on the head, neck ...

With flashy feathers and fancy moves, birds of paradise are already known ... For instance, intense blue — in; then greenish yellow — out. Seahorses and pipefish fluoresce bright red.