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Tag Archives: natural selection

Breastfeeding saved infants in Ice Age, led to bigger breast size in humans: Study

Breast feeding might have played a criticial role in infant survival during the last ice age, and it might have led to a common genetic mutation in East Asians and Native Americans, which could have affected the shape of their teeth, says a new study. The genetic mutation, which probably occurred 20,000 years ago, in turn led to more density ...

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Why Humans Still Live in Slow Motion World?

Small birds, which measure just one percent of Humans in mass, have vision that is incredibly twice the speed of human vision, found a team of Swedish scientists. It is known that perching birds (small passerines) do not only have good visual eyesight but they also see things at lightning speed. Compared to them, humans are still in slow-motion world, ...

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