What kind of animal had horse-like hooves, a duck bill, and miniature scales all over its body? The answer isn't some fictional creature with different parts stitched together like Frankenstein's ...
A thin clay layer in Italy, discovered by a scientist and his geologist son, revealed an unusual iridium spike. This rare ...
In the badlands of eastern Wyoming, the Lance Formation is a trove of prehistoric fossils. And one area in particular — a region less than 10 kilometers (6 miles) across — has provided scientists with ...
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