In the vast and mysterious depths of prehistoric oceans, colossal creatures once ruled the waters. These marine giants, such ...

Strandings of these jellyfish-like animals, sometimes called "by-the-wind sailors," usually mean spring is coming ...

Krill is considered to be the largest animal biomass in the wild on Earth and is an important prey species for baleen whales ...

Researchers took advantage of a rare chance to explore a new expanse of seafloor exposed by the breakup of an Antarctic ice ...

"Twins! She has another baby," Judith Pardo-Pérez, a paleontologist at the University of Magallanes in Chile who first ...

The nearly complete specimen of a known plesiosaur species is opening scientists’ eyes to the diversification of these ...

The discovery of nearly 20 alligator-size amphibians that died together during the Triassic in what is now Wyoming is ...