Directorios

Enlace: http://www.pbs.org/wgbh/nova/crocs/

Descripción: PBS NOVA Online.
«Crocodiles are the ultimate survivors. Having arisen some 200 million years ago, they have outlived the dinosaurs by some 65 million years. Even people, the most fearsome predators ever to stalk the Earth, have failed to force into extinction any of the 23 species of crocodilians.»