Learn what secrets this pregnant ichthyosaur reveals from the Early Cretaceous and why this find is so important.

The Arctic landscape during the Cretaceous Period may have been dominated by the dinosaurs, but the rivers and streams held something more familiar. Alaska's fresh waters 73 million years ago were ...

Researchers uncovered the oldest known salmon species, showing that northern fish have ancient Arctic roots dating back 73 ...

Some creatures made it from the prehistoric era to today. Discover 5 species that have survived since the age of dinosaurs.

Long before the carnage began, the Cretaceous picked up where the Jurassic ... long-necked and toothy marine reptiles terrorized fish, ammonites, and mollusks in the seas; pterosaurs and hairy ...

Xiphactinus was one of the largest bony fish of the Late Cretaceous and is considered one of the fiercest creatures in the sea. A powerful tail and winglike pectoral fins shot the 17-foot-long (5 ...

These ancient fish were survivors. In the Late Cretaceous period, the Arctic saw four months of total darkness each year, with mean annual temperatures around 6°C and icy winters. Fossils show ...

Researchers determined the season during which the meteor struck by studying the bones of fish excavated from a contentious field site. Amanda was an associate editor at The Scientist, where she ...

Late Jurassic and Early Cretaceous oceans are known for enormous and fierce predators like pliosaurids with 2-meter-long jaws, toothy thalattosuchia crocodyliforms, and fast, fish-like ...