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How skin pigment protects us from UV rays

To protect the body from the dangerous ultraviolet (UV) rays from the sun, skin pigment converts UV radiation into harmless heat through a rapid chemical reaction, a study says.

Fossil pigments reveal extinct sea monsters had black skin

Scientists have revealed the color of three multi-million-year old marine reptiles, suggesting that the pigment shows that these animals were, at least partially, dark-coloured in life, which is likely to have contributed to more efficient thermoregulation, as well as providing means for camouflage and UV protection.