A fossil bed in the High Atlas Mountains of Morocco is allowing new insights into the anatomies of arthropods that lived a half-billion years ago.

The species survived on an island north of Siberia for thousands of years, scientists reported, but were most likely plagued by genetic abnormalities.

Flatfish offer an evolutionary puzzle: How did one eye gradually migrate to the other side?

Researchers analyzed a skull found in Montana of a plant-eating member of the ceratops family, finding distinct traits.

Researchers have long assumed that a tube in the famous Pikaia fossil ran along the animal’s back. But a new study turned the fossil upside down.

© Mussini et al., Current Biology 2024

Two brothers, their father and a cousin were hiking in the North Dakota Badlands in 2022 when they found the bones of a juvenile Tyrannosaurus rex.

© Denver Museum of Science and Nature

The specimen, found by the paleontologist Jason Cooper, could be auctioned for millions of dollars by Sotheby’s.

© Nina Riggio for The New York Times

The brittle star specimen suggests that the sea creatures have been splitting themselves in two to reproduce for more than 150 million years.