Deep-sea fish adapt to some of the most extreme conditions on Earth. New research analyzing their evolution finds the same ...

Whether or not the asteroid or comet that carved the Chicxulub crater caused the extinction of more than half the planet's species at the end of the Cretaceous remains a matter of scientific debate.

Larger species had slender struts inside hollow ... out to sea in the Cretaceous period. This fish catcher, which had a wingspan of up to 24 feet (7.3 meters), must have regularly soared vast ...

This newly discovered titanosaur species was found in what was once a shallow pond during the Cretaceous Period ... the fossils we identified of mollusks, fish, and turtles, enriches our ...