• anteayer
In this video, we explain why squirrel bones glow under UV black lights. This is true exclusively for one species of squirrel - the eastern fox squirrel. In the video, we explain why this happens, and show what a squirrel skull looks like as it fluoresces under a UV black light. This video answers the questions:

What animals fluoresce under UV light?
What animal bones fluoresce under a UV lights?
How does fluorescence work?
What is the science behind fluorescence?
Why do some things fluoresce?
What do squirrel bones look like under a UV light?

Specimen use made possible by the University of Michigan Museum of Zoology.

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Animales
Transcripción
00:00If you place a squirrel skull under a UV blacklight, something very unusual happens.
00:08Ultraviolet light hits the squirrel's skull and is absorbed by special compounds called
00:17porphyrins. After absorbing the UV light, the porphyrins gain a ton of energy which they
00:26release as a different kind of light. Notice how the released light has a longer wavelength than
00:36the UV light. That means instead of being invisible UV light, it's visible light that's pink.
00:47So this means under a UV light, squirrel bones glow pink. For reference, here's what a normal
00:59rabbit skull looks like. This is what most bones look like under a UV light,
01:06just kind of bluish purple. But here's what a squirrel skull looks like. It's pink.

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