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 ...

This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in ...

A study led by researchers at the American Museum of Natural History presents the oldest known example in the fossil record of an evolutionary arms race. These 517-million-year-old predator-prey ...

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 ...

A new study finds that shells of the polar plankton Neogloboquadrina pachyderma can record two distinct chemical signals, potentially distorting reconstructions of past ocean temperatures. Researchers ...

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