One of the best-preserved early snake fossils, the Tametara mirim fossil dates back around 75 to 85 million years to the Cretaceous Period. Snakes first appeared during the age of dinosaurs, but fossils of many early species are so fragmentary that scientists have had difficulty deciphering their evolution as a group. Now, a well-preserved fossil from southeastern Brazil is offering fre... [1399 chars]
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