From Africa to the Americas, crocodiles are among the most feared creatures on the planet. At Nova Online: Crocodiles, you'll learn how these stealthy wonders continue to survive and prosper through the age of dinosaurs to the present. Crawl out to the tropics at www.pbs.org/wgbh/nova/crocs . In this swampland adventure, you'll wrestle with a half-ton Nile crocodile in the wild and read about a fossil croc in Australia that may have been a tree-climber. With amazing photographs and info on diets, habitats and croc bites, this is no small gator farm. And at the Clickable Gator, you'll find the secrets behind the croc's success as the top predator in the 'hood. Just watch your step!