A new prehistoric dolphin species has been discovered, and it had excellent high-frequency hearing abilities that were similar to those of dolphins today. The animal lived around 22 million years ...

Only recently were a pair of Smithsonian paleontologists able to trace its evolutionary origins, by X-ray scanning the fossil and building a digital model, finding that it was a previously undescribed ...

Bajii Yangtze dolphin The Baiji Yangtze Dolphin is with all probability extinct reports a scientific expedition from the Institute for Hydrobiology Wuhan, China, and the Swiss-based baiji.org ...

They evolved separately around 250 million years ago, possibly from a crocodile-like ancestor, to resemble fish and modern dolphins. Then, they went extinct around 94 million years ago.

This illustration shows a life restoration of a pod of Ankylorhiza tiedemani hunting. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert ...

Fossils from an ichthyosaurs found in North Canterbury are helping advanced understanding of these dolphin-like reptiles.