From horseshoe crabs to crocodiles, some of these creatures have looked about the same for hundreds of millions of years.

Prehistoric animals are often pictured as distant fossils, yet a surprising number of species still walk, swim, and crawl across Earth with body plans that echo deep time. Strictly speaking, ...

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Based on fossil finds, archaeologists are now piecing together how ancient humans thrived in a land dominated by dangerous large animals. A study published in the journal Science Advances has unveiled ...

Ever wonder how saber-toothed cats and other extinct creatures behaved? Well, a team of scientists unearthed ancient footprints that offer insight into how various prehistoric animals lived as far ...

Paleontologist Thais Pansani stands in front the reconstructed skeleton of a giant ground sloth at the Smithsonian National Museum of Natural History in Washington, D.C., on July 11. The Associated ...

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Long ago, approximately 2.6 million years ago during the Ice Age, prehistoric animals roamed throughout the U.S., including Louisiana. Prehistoric megafauna like the mastodon, which were large, ...