While modern octopuses have DNA that consistently gets reshuffled, resulting in some chromosomal mixing, the researchers ...

At the end of the Cretaceous Period, a type of giant reptile called mosasaurs occupied and dominated oceanic food webs.

Dinosaurs ruled Earth for millions of years, but according to the most widely accepted theory, a massive asteroid wiped them ...

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What if one of the most iconic “living fossils” has been misleading evolutionary biology for decades? The African coelacanth, for a long time considered a key to the distant past, is now in the middle ...

Scientists say this shark has hardly changed since it first appeared millions of years ago. That’s why they’re so fascinated ...

Fossils can reveal far more than the shapes of ancient creatures. Molecules preserved inside old animal bones provide clues about past diseases, what those animals ate, and the climates they lived in.

Grand Canyon fossils in the Bright Angel formation reveal 500M-year-old animals with dual feeding structures, reshaping ...

For the first time, scientists have analyzed metabolism-related molecules from the fossilized bones of animals that lived 1.3 ...