Traditional roles of male dominance.
The Australian dingo.
There are over 200 shark species.
Wild, predatory cats of the New World.
Ramon Braco observes sharks off the coast of Yucatan.
The wild cats of Africa.
Great brown bears of Alaska.
Shark experts observe sand tiger sharks on a man-made reef.
Crocodiles and alligators.
Insects and spiders.
Wild canines are among the most formidable predators on Earth.