Scientists discover spooky glow in long-eared owl feathers
Scientists from American universities have discovered that the feathers of the long-eared owl glow in the dark! However, ultraviolet light is required to see this.
The long-eared owl, also known as the typical long-eared owl, is one of the most commonly encountered owl species.. It's pretty easy to recognize. As reported by the G.pl website, it is distinguished by its orange eyes and protruding "ear tufts." Its plumage is usually reddish-brown, although some individuals have gray coloring. This owl occurs not only in Europe but also in Asia, Africa, and North America.
Although it may seem that researchers know a lot about long-eared owls, they still hold certain secrets. The latest research conducted by scientists from Drexel University and Northern Michigan University has revealed that long-eared owl feathers contain fluorescent pigments! This extraordinary trait is visible only under ultraviolet light.
The pigments glow under ultraviolet light, which was discovered during bird banding in 2020. The fascinating research results were published in "The Wilson Journal of Ornithology."
An American research team led by Dr. Emily Griffith scanned the bird's plumage with a special device, which showed clear bioluminescence. It was particularly visible from beneath the wings, reports the G.pl website.
It was also discovered that female long-eared owls have a higher concentration of the glowing pigment. "This trait does not strictly depend on gender. The amount of pigment is related to size, age, and gender," explained Dr. Emily Griffith.
Why do they glow in the dark?
Scientists suggest that the glowing pigments in long-eared owl feathers might reflect infrared radiation, helping insulate heat better.
Research on bioluminescence in birds is still in its early stages, but it already provides fascinating insight into how these animals adapt to their environment.
