1369IC writes "The Washington Post is reporting that the recently unearthed Mapusaurus roseae was as large as a T-Rex and may have hunted in packs. The fossils were found in Patagonia, in Argentina, though not enough were found to reconstruct an entire specimen. The meat-eaters probably lived in the same time and place as the 125-foot-long Argentinosaurus, the largest known dinosaur." From the article: "T. rex was equipped to attack and destroy animals its own size, Currie said, but Mapusaurs perhaps could 'go in, strike, pull and see what to do next,' a strategy that could work against larger animals, especially if the predators attacked together -- the prehistoric equivalent of a pack of wolves cornering a bison."
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