Scientists discovered some of the oldest bony fish fossils in China. The fossils explain the early history of animals with backbones.

Tiny fossil teeth from Colorado are revealing new clues about the very first relatives of primates, including humans.

A newly described Patagonian fossil reveals the evolutionary origins and global spread of the tiny alvarezsaur dinosaurs.

Homo erectus skulls from China’s Yunxian archaeological site revealed ages close to two million years—a million years older than previously believed.

Tiny, tooth-sized fossils have just reshaped the story of our deepest ancestry. Paleontologists have discovered the southernmost remains ever found of Purgatorius—the earliest-known relative of all ...

New minuscule fossils of Purgatorius, the earliest-known relative of all primates—including humans—have been unearthed in a ...

New research shows that the earliest sponges were soft bodied and lacked skeletons, explaining why their oldest fossils are ...

Could a Moroccan cave hold a crucial piece of the puzzle of human origins? Hominin fossils dating back 773,000 years discovered in the country are bringing new evidence to the debate about the last ...

Feb. 24 (UPI) --On this date in history: In 1803, the U.S. Supreme Court, in its Marbury v. Madison decision, established the principle of judicial review, which gave federal courts the ability to ...

Once, long ago, a little reptile going about its business plopped itself down in the mud before getting up and carrying on with its day. Nearly 300 million years later, that brief rest has yielded the ...

Frontal views of the first two Yunxian crania. Credit: Hua Tu et al. / CC BY-NC 4.0 Three ancient skulls found in central China are far older than scientists once believed, pushing back the timeline ...

The earliest ancestors of all backboned animals, including humans, may have viewed the world with four eyes, not just two. The remnants of those extra eyes persist in the human brain today as the ...