SciShow explains the genetics -- and physics -- behind why blue eyes are blue, and what the future may be for the trait. Spoiler alert: Blue eyes aren’t really blue! SciShow explains!

Nina Jablonski says that differing skin colors are simply our bodies' adaptation to varied climates and levels of UV exposure. Charles Darwin disagreed with this theory, but she explains, that's because he did not have access to NASA.

Our bones are multi-functional body builders, but perhaps their most mysterious function is the production of blood. Scientists now think they have a pretty good idea why this is where our blood gets made.

Howcast -Find out if lower eyelid surgery will remove under-eye bags permanently in this Howcast video featuring plastic surgeon Robert J. Morin, M.D..

Not to be confused with albinism, leucism is a condition characterized by reduced pigmentation. So, this cute little guy is white where he should be brown, and brown where he should be white.

There have been over 20,000 mammals born at the zoo, but not one leucistic animal - until now. Meet Luke, the ellipsen waterbuck.

Not to be confused with albinism, leucism is a condition characterized by reduced pigmentation. So, this cute little guy is white where he should be brown, and brown where he should be white.

Not to be confused with albinism, leucism is a condition characterized by reduced pigmentation. So, this cute little guy is white where he should be brown, and brown where he should be white.

AN ASPIRING model whose vitiligo is slowly fading hopes that it never disappears. Bashir Aziz, from Tooting, London, was born with vitiligo, a skin disorder characterised by small, white patches on various parts of the body caused by the...

LONDON, UNITED KINGDOM - NOVEMBER 16: AN ASPIRING model whose vitiligo is slowly fading hopes that it never disappears. Bashir Aziz, from Tooting, London, was born with vitiligo, a skin disorder characterised by small, white patches on...

The presence of chromatophores allows some ectotherms change color in response to external stimuli, such as sunlight or a threatening predator. Learn how chromatophores function and why only cold-blooded animals are able to change...

This video discusses the main functions of the integumentary system.
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Protection, sensory perception, body temperature, storage, absorption, excretion, production, Pigmentation, melanin, carotene, albino, erythema, jaundice,...

Vitiligo (Skin Depigmentation) | Pathophysiology, Signs and Symptoms, Diagnosis, Treatment



Vitiligo is a primary pigmentary condition involving depigmentation of the skin. The etiology is unknown. The pathophysiology involves...