RedOrbit: A research team from Penn State and Rutgers University found that roughly 2 million years ago in East Africa, a series of rapid environmental changes may be responsible for driving human evolution. "The landscape early humans were inhabiting transitioned rapidly back and forth between a closed woodland and an open grassland about five to six times during a period of 200,000 years," said Clayton Magill, graduate student in geosciences at Penn State. "These changes happened very abruptly, with each...
URL: http://www.redorbit.com/news/science/1112753893/evolution-of-humans-driven-by-landscape-transitions-122512/
Enclosure: http://www.redorbit.com/media/uploads/2012/12/science-122512-003-617x416.jpg
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