Mammoth bones found on the Colorado Plateau may shift the timeline of when humans first reached the Americas. Archaeologists ...

CAPE CANAVERAL, Fla. (AP) — Telescopes around the world have spotted a monster radio jet streaming from a quasar dating back to the first 1 billion years of the universe. At double the width of our ...

In the Cretaceous period, Earth was plagued by widespread volcanic activity, oceanic oxygen depletion events, and mass extinctions. Fossils from that era remain and continue to give scientists clues ...

In northeast China, there's a place that's offered up a treasure trove of exquisite dinosaur fossils over the years. The prevailing theory says they were preserved suddenly by volcanic activity. But ...

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, ...