While there is an astounding variety of physical differences in wildlife that humans can easily observe, new research from ...

Long-eared Owls have fluorescent feathers that glow under UV light. These hidden pigments vary by age, sex, and size.

Researchers report their discovery of fluorescent pigments in the feathers of Long-eared Owls, that can only be seen by humans with the help of ultraviolet light. While there is an astounding ...