Evolution in Overdrive

July 2013
Discover;Jul/Aug2013, Vol. 34 Issue 6, p20
The article focuses on research into human evolution. It states that research into the average age of humanity's gene variants found that three-quarter of single nucleotide mutations occurred within the last 5,000 years. Researcher Joshua Akey estimates over 80 percent of the mutations are likely harmful, but some have beneficial attributes such as allowing adults to digest milk or letting people live at high altitudes. It presents a graph of the total world population from 4,000 BC to 2050 AD.


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