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EarthWhen the Great Lakes were lower
New archaeological evidence shows signs of prehistoric hunting and other human activities on now-submerged portions of Lake Huron.
By Sid Perkins -
PhysicsFriction gives snakes a smooth slither
Combination of friction and push propels snakes forward on flat surfaces.
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HumansChildren get social with virtual peers
Life-size 3-D versions of children can draw kids with autism into social encounters and more news from the annual meeting of the Jean Piaget Society in Park City, Utah, June 4-6.
By Bruce Bower -
The iron record of Earth’s oxygen
Scientists are decoding the geological secrets of banded iron formations.