Ultimate Crocodile Format:DVD A millionaire offers ten thousand

A millionaire offers ten thousand dollars to five people if they agree to stay overnight in a large

from the frozen wildernesses to the densest jungles

of all things

But when two visitors reveal their true motives

a terrifying virus transforms people into "hybrids

Ultimate Crocodile Format:DVD A millionaire offers ten thousandThe giant saltwater crocodile, the "saltie," is perhaps the most successful predator the world has ever seen. It has survived unchanged for 100 million years. National Geographic uncovers the secrets of this ultimate predator, which has the most powerful jaws since T rex, the most complex heart in the animal kingdom and a brain with unexpected intelligence. Examine the remarkable features of the croc from its finely tuned pressure sensors used to