US scientists have discovered fossils of the largest known true crocodile, a creature that roamed what is now Kenya between 2 and 4 million years ago. The illustration shows the comparative sizes of ancient/modern crocodiles and ancient/modern humans (Chris Brochu / University of Iowa) “It’s the largest known true crocodile,” said Dr. Christopher Brochu, an associate professor of geoscience at the University of Iowa and a lead author of...