Bite Marks Reveal Ancient Sloth Was Preyed On By A Massive Prehistoric Crocodile
After studying fossils from an ancient ground sloth found in 2004 , a studypublished inBiology Lettershas reason out the tooth marks treat the bones were from the animal being predate on by a 4 - metre ( 13 - foot ) jejune ancient crocodile species . After an expedition to the Napo River in Peru revealed beds containing 13 - million - year - old fossils from the Miocene era ( ~16 - 11....