PICTURES: Prehistoric Spiders' Weapons Revealed via 3-D
August 6, 2009—It was ever spider for itself in the brutal pre-dinosaur world of the Carboniferous period, new 3-D images reveal. About 359 to 299 million years ago, Earth teemed with newly evolved insects and hungry amphibians that had just crawled onto land.
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Friday, August 7, 2009
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