The availability of prey and the ability to adapt to changing environments played key roles in the evolution of sharks. A new study, in which over 3,000 shark teeth were analysed, provides new insight ...

Kenshu Shimada, Mesozoic Origin for Megamouth Shark (Lamniformes: Megachasmidae), Journal of Vertebrate Paleontology, Vol. 27, No. 2 (Jun. 12, 2007), pp. 512-516 ...

Sharks began evolving differently after the extinction of many dinosaurs, possibly caused by an asteroid strike about 66 million years ago. Scientists from Uppsala University in Sweden studied how ...

Reconstruction of Megalodon, (O. megalodon) extinct species of shark which lived between the Eocene and the Pliocene Period. Drawing. (Photo by DeAgostini/Getty Images) Fish, as a diverse group, have ...

May only be published in connection to reports about the research by Bazzi et al or after permission from photographer/artist.

The extinction event that wiped out all nonbird dinosaurs about 66 million years ago also shook up shark evolution. Fossilized shark teeth show that the extinction marked a shift in the relative fates ...

Mohamad Bazzi receives funding from Forschungskredit (K-74604-01-01). Nicolas Campione receives funding from the Australian Research Council Discovery Early Career Research Award (DE190101423). Before ...

Many Cretaceous Lamniformes had specialised diets for eating marine reptiles and, following their loss at the end of the age of dinosaurs, these Lamniformes went extinct. On the other hand, ...