Research has shown that pelagic sharks tend to have longer, narrower fins compared to their benthic relatives, which typically possess shorter, rounded fins. A key to understanding how sharks navigate ...

An extraordinary discovery in Egypt's Western Desert is giving scientists a glimpse into a world that existed millions of years before the modern desert took shape. Researchers have uncovered ...

(CNN) — During the Cretaceous Period, a genus of sharks roamed the sea with rows of unusual teeth. Mostly large and rounded, these chompers were not meant to slice through their prey, but to grind and ...

More than 100 million years ago, scientists say, warming seas and reduced oxygen may have sent some sharks higher into the water column, where they evolved to be fierce and hungry. By Jeanne Timmons ...

Add Yahoo as a preferred source to see more of our stories on Google. (Anton Petrus/Moment/Getty Images) The desert sands of Egypt have been dry for thousands of years. As difficult as it is to ...

Kyle and Natalie search an Alabama creek where Cretaceous-aged clay is packed with shark teeth and other fossils from the age ...

In the age of dinosaurs—before whales, great whites or the bus-sized megalodon—a monstrous shark prowled the waters off what's now northern Australia, among the sea monsters of the Cretaceous period.

The Ocean Before Dinosaurs ExistedAbout 400 million years ago, in the Devonian sea. There were almost no large creatures on ...

The highest trophic niches in Mesozoic oceans were filled by diverse marine reptiles, including ichthyosaurians, plesiosaurians, and thalattosuchians, dominating food webs during the Jurassic and ...