This 'enigmatic' feathered dinosaur didn't fly like modern birds

By Ashley Strickland, CNN

Updated 1848 GMT (0248 HKT) March 13, 2018

This artist's illustration shows a young Purussaurus attacking a ground sloth in Amazonia 13 million years ago.
Photos: Ancient finds
This artist's illustration shows a young Purussaurus attacking a ground sloth in Amazonia 13 million years ago.
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This bundle of bones is the torso of another marine reptile inside the stomach of a fossilized ichthyosaur from 240 million years ago.
Photos: Ancient finds
This bundle of bones is the torso of another marine reptile inside the stomach of a fossilized ichthyosaur from 240 million years ago.
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Researchers uncovered the fossilized fragments of 200,000-year-old grass bedding in South Africa's Border Cave.
Photos: Ancient finds
Researchers uncovered the fossilized fragments of 200,000-year-old grass bedding in South Africa's Border Cave.
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Meet Sasha, the preserved and reconstructed remains of a baby woolly rhinoceros named that was discovered in Siberia.
Photos: Ancient finds
Meet Sasha, the preserved and reconstructed remains of a baby woolly rhinoceros named that was discovered in Siberia.
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Stone tools made from limestone have helped researchers to suggest that humans arrived in North America as early as 30,000 years ago.