An asteroid strike 66 million years ago caused millions of species to go extinct—including many mollusks. By studying the impacts of this ancient event, scientists hope to ensure that mussels ...

The cataclysmic asteroid Chicxulub hit the Earth with a catastrophic impact, it obliterated the biggest and heaviest living ...

Not everything dies in a mass extinction. Sea life recovered in different and surprising ways after the asteroid strike 66 ...

An ancient fossil of a rudist from before the last mass extinction. These bivalves could grow to a meter high. Smithsonian Institution. Today, giant clams and their relatives fill parts of these ...

A clam presumed extinct for 40,000 years has been found alive. ... It bore a striking resemblance to a fossil bivalve first described in the 1930s by paleontologist George Willett.

Focusing on the past to protect the future. To investigate, the researchers examined nearly 2,000 genera of bivalves from before and after the Cretaceous mass extinction, as well as today.

Most bivalves happily burrow into the sand and mud, feeding on phytoplankton they strain from the water. But others have adopted chemosymbionts and photosymbionts — bacteria and algae that ...

To investigate, the researchers examined nearly 2,000 genera of bivalves from before and after the Cretaceous mass extinction, as well as today. By comparing the shells of living and extinct species, ...