After learning about the 120-million-year-old crocodile that walked on its hind legs like the T. rex, read about the study claiming T. rex legs were long to save energy rather than run.

Dr. Braczkowski has been running a long-term study of African ... journal Ecology and Evolution. A three-legged lion survived the longest swim in crocodile-infested waters ever recorded.

The remains of a young marine crocodile have been discovered in a Peruvian desert. The fossils date back 10 to 12 million ...