T. Rex tooth could prove it hunted other dinosaurs

07/15/2013 | National Geographic News

Scientists say a tooth, embedded in the healed tailbones of a duckbill dinosaur proves that Tyrannosaurus rex hunted other dinosaurs. Paleontologists speculate that the discovery at the Hell Creek Formation in Montana shows a T. Rex attacked the other dinosaur, but some scientists say that the T. Rex was simply a scavenger. "A T. rex could have walked up to a sleeping duckbill dinosaur and bit it, realized it was alive, and then backed away," said Jack Horner, a paleontologist at Montana State University.

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