Caimans, anacondas, piranhas, and giant river otters fight to survive.

Jaguars and caimans battle in the extreme environments of South America.

The battle for survival and adaptations that have been made by wildlife.

Jon Wolfson examines the lethal power and strange abilities of nature's most vicious hunters.

Searching for the world's strangest creatures.

Nigel Marven journeys to the Colombia's major habitats to meet rare and unusual creatures.

Video captures images of great nature and vibrant wildlife.