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Showing posts with label average intelligence among humans in a gradual decline. Show all posts
Showing posts with label average intelligence among humans in a gradual decline. Show all posts

11/14/2012

U.S. study: Humans are getting stupid



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Said U.S. researcher, said the average intelligence among humans in a gradual decline, justifying his theory that man was in great need of mental abilities when he was wandering around in small groups in the wild to survive, but the importance of intelligence fell with the start of humanitarian practice agriculture and stability and live in communities more.


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