Imagine the Western Plains of North America, from Texas to Alaska, submerged under a broad, shallow seaway. To the west lay ...

Researchers have discovered the world's longest trail of fossilized human footprints at White Sands National Park, New Mexico.

Possible dinosaur tracks spotted along a Texas riverbank have experts wondering what left the giant, three-toed impressions.

One of the many myths about dinosaurs we should stop believing is that they were all the size of T-Rexes. Enter what may be the world's smallest dinosaur footprints. These miniature tracks are ...