Birds-of-paradise are sending secret color signals invisible to human eyes, scientists say
Birds-of-paradise are even colorful in the dark, with feathers and body parts that glow a brilliant yellow-green under ultraviolet (UV) light, a new study found.
CNN20d
Birds-of-paradise are sending secret color signals invisible to human eyes, scientists say
Researchers described biofluorescence in 37 of the 45 known species of birds-of-paradise, found only in remote tropical forests and woodland habitats of Papua New Guinea, eastern Indonesia and ...