By Will Dunham WASHINGTON (Reuters) -The fossil of a small reptile that inhabited Scotland during the age of dinosaurs 167 million years ago has scientists puzzled. It mixed snake-like traits and ...

When paleontologists only have so many clues to infer a fossil’s original form, it’s all too easy to make honest mistakes. Sometimes, supposedly reasonable assumptions set researchers on the wrong ...

Sixty-seven million years ago, when dinosaur hatchlings first scrambled out of their eggs, their first -- and last -- glimpse of the world might have been the open jaws of a 3.5-meter-long snake named ...

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If it was not part of the snake lineage, Breugnathair may have been an evolutionary dead end, with snake-like predatory habits emerging separately in a group that ultimately went extinct. The fossil ...