Killer Bite: Ancient, tiny mammal probably used venom | Science News

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Killer Bite: Ancient, tiny mammal probably used venom

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9:29am, June 22, 2005

Recently excavated fossils of a mammal species originally described decades ago suggest that the mouse-size creature had a venomous bite, a trait previously unreported in ancient mammals.

Paleontologists first unearthed remains of Bisonalveus browni in Wyoming more than 50 years ago. However, those fossils included only a few rear teeth and fragments of skulls and lower jaws, says Richard C. Fox, a paleontologist at the University of Alberta in Edmonton. The newer fossils that Fox and his university colleague Craig S. Scott discovered in 60-million-year-old rocks at two sites in centra

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