But the true size and shape of this extinct giant probably doesn't resemble the star of "Jaws." Scientists have long debated the true size of the megalodon (Otodus megalodon), which went extinct ...

Experts at Brazil's University of São Paulo, believe the giant creature belonged ... while other crocodile species became extinct at the end of the Cretaceous period.

One type of crocodile, Barinasuchus, lived on land and was as tall as a human. Barinasuchus is an extinct crocodylian reptile that lived in modern-day Argentina and Brazil. The name translates to ...

In the 1990s, Siamese crocodiles were “believed to be extremely close to or fully extinct in the wild,” wildlife officials said. By 2000, scientists located a few small wild populations.

By the late nineties, they were thought to be extinct ... The Siamese crocodile’s role as a flagship species - chosen to represent an environmental cause similar to giant pandas in China ...