Human evolution in fast forward mode

DNA model
A model of DNA's double helix structure.
Image courtesy of the Center for Structural Biology at Yale University

Human beings are evolving at an ever faster rate, according to a new study.

A group of anthropologists and geneticists tracked this change by looking a relatively new gene for digesting milk, which varies depending on where in the world you live.

Midmorning looks at what anthropologists are uncovering about our past and possible hints of the future.

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