The world’s largest T. rex found to date likely weighed nearly 20,000 pounds during its life.

Drastic dietary changes during the agricultural revolution altered the configuration of the human bite, paving the way for new sounds in spoken language, a new study finds.

At an archaeological site in Peru, researchers have found the remains of hundreds of children and llamas sacrificed in the 15th century.

A finding pushes back the timeline on humankind’s conquest of one of Earth’s harshest environments, and may provide clues about interactions with their hominin relatives.

If the structures identified in a 2.1-billion-year-old rock are really signs of burrowing organisms, it would push back the earliest known mobile organisms by 1.5 billion years.

Denisovans and Neanderthals likely overlapped at this Stone Age hot spot for thousands of years, and modern Homo sapiens may have dwelled there, too.  

From canceled conferences to delayed publications, fallout of the shutdown spread beyond US borders, prompting concerns about long-term damage to international collaboration.

Galagadon’s tiny teeth look like the spaceships in its namesake video game from the early 1980s.

See an update from Chicago's Field Museum about the works of Charles R. Knight and other paleoartists who pioneered the depiction of ancient life.