Researchers Find Evidence That Human Evolution Is Still Actively Happening

Researchers Find Evidence That Human Evolution Is Still Actively Happening

A large new study says humans are still evolving. Scientists found that natural selection is weeding out harmful genetic mutations from our gene pool.

While we tend to think of evolution as laborious process that takes a long period of time, there also changes that can take place over one or two generations. Researchers from Columbia University analyzed DNA from 210,000 people in the United States and Britain and found that certain genetic variants, particularly those linked to Alzheimer’s disease and heavy smoking appear less frequently in people who live longer. This suggests that such genes are being less favored and may be on the way out of the human genome. 

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http://bigthink.com/paul-ratner/scientists-find-evidence-of-human-evolution-still-actively-happening

http://bigthink.com/paul-ratner/scientists-find-evidence-of-human-evolution-still-actively-happening