Tiny plankton shells used to reconstruct past polar ocean temperatures may contain two different chemical stories, a new ...

Researchers have discovered the oldest known example of a predator-prey “arms race,” based on their study of ancient fossils. This ancient predator-prey relationship took place 517 million years ago ...

The ancient cephalopod, Nanaimoteuthis haggarti, appears to have been an apex predator that rivaled mosasaurs to rule ...

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At the end of the Paleocene and beginning of the Eocene epochs, between 59 to 51 million years ago, Earth experienced dramatic warming periods, both gradual periods stretching millions of years and ...

Fossil egg found in Antarctica suggests marine reptiles laid eggs, challenging previous beliefs about ancient life.

A fossil site in Australia shows iron can preserve soft tissues, changing how scientists search for ancient ecosystems.