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 ... that is emitted after absorbing radiation such as UV light -- to measure variation in the amount of ...

While the diversity of physical characteristics in wildlife is readily observable by humans, recent research from Drexel University’s College of Arts and Sciences suggests that there may be even ...

In a study recently published in The Wilson Journal of Ornithology, the researchers report their discovery of fluorescent ... UV light – to measure variation in the amount of fluorescent ...