Social factors too define skin colour of Indians
(World News Science)

Skin colour variation in Indians is determined not just by the environment and genetics but by sexual selection, too. A complex interaction between physical and social forces is responsible for patterns of skin colour seen in males and females in India, says a study by CCMB researchers who collaborated with an international team. The researchers looked at how skin colour varies between 10 different socio-cultural populations varied within and between the populations in Andhra Pradesh, Tamil Nadu, Uttar Pradesh and Bihar. They also looked at variation in skin colour between males and females within and between populations. Then they studied the influence of ultraviolet radiation on skin...