For 6,000 years, the Bedouin have bred Saluki from only the quickest dogs with the best eyesight.

Baboons move in groups of about 80 individuals for defense. Often, larger males will go on offense as well -- chasing away predators or taking down a young gazelle.

The father gyrfalcon hasn't brought home enough food, so the mother decides to go on the hunt.

In the 1970s, the pollock industry in Alaska expanded to become the largest fishery in the world, just as sea lions began to disappear -- a smoking gun?

Hawaii isn't all idyllic beauty. Watch the full episode of Violent Hawaii online now.

Sculpted millions of years ago by the advance and retreat of vast shields of ice, Ireland harbors a wealth of wildlife. Watch the full episode online.

Following their protection as an endangered species, bald eagles have come roaring back. Watch the full episode online.

Swirling currents bring rich nutrients to a reef teeming with life. Watch the full episode online.

Crocodiles are too dangerous to approach with a tape measure. Rom Whitaker and an assistant use photography to make an estimation of a gharial's size.

The Nile crocodile is known for its incredible ambush power. This amazing footage shows the crocodile nabbing its prey from the banks of the Grumeti River.