The pits — which are 6 feet deep and 25 yards in diameter — were discovered when the site was excavated to be used as a garbage dump, according to a statement from Mexico’s National Institute of Anthropology and History.
Researchers think that groups of 20 or 30 prehistoric hunters herded the mammoths with torches and branches, attempting to separate one animal from the group and lead it into a trap. A series of such traps in the area may have increased hunters’ mammoth-trapping success rate.
EPA to limit manmade chemicals in drinking water FILE PHOTO: Tap water flows out of a faucet in New York June 14, 2009. REUTERS/Eric Thayer/File Photo WASHINGTON (Reuters) – The U.S. Environmental Protection Agency will announce on Thursdays limits on … read more