Grandparents connected to success of human race
Tuesday, July 26, 2011 - 11:01
in Psychology & Sociology
(PhysOrg.com) -- If you looked around at your family some 40,000 years ago, you would not have seen grandparents as the likelihood of a person passing their 30th birthday was slim. However, according to new research reported in Scientific American, 30,000 years ago things began to change and the life expectancy of adults began to rise.
