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Published in : 2015-06-22 | by National Geographic
See firsthand how positive and negative reinforcement can affect a player's game on the court. ➡ Subscribe: http://bit.ly/NatGeoSubscribe #NationalGeographic ...
Published in : 2008-02-07 | by National Geographic
The subduction of the Pacific plate beneath the North American plate caused the Rocky Mountains to rise up. Naked Science: The Rockies ...