I, Predator

His ancestors ruled the oceans long before the dinosaurs walked the earth. Now, the planet's fiercest predator, the great white shark, is locked in a battle for survival with the Cape fur seal.

He's the largest land predator on earth, a near-perfect killing machine, and for eons, the polar bear has been engaged in the ultimate battle for survival with the evasive ringed seal.

For millions of years, the cheetah, the fastest animal on the planet, has had the antelope in its sights. To take down the antelope, which is nearly impossible to surprise, the cheetah has needed to develop more weapons than just its speed.

For 3 million years, Nile Crocodiles have thrived by eating anything and everything that crosses their path. But on the Mara River in Africa, they're waiting for a meal with enough calories to sustain them for up to two years, the wildebeest.

They're one of the most intimidating creatures on the planet, and for millions of years, African lions have ruled the savannah. With tremendous power and coordination, they aren't afraid to take down anything. Its preferred meal: the buffalo.

Nothing dominates the world's oceans like the Killer Whale. A nearly flawless predatory machine, it outmuscles and outsmarts almost all other animals on earth.