The Savannah is constantly changing and often unpredictable. To survive here, creatures must be able to adapt as the region turns from wet to dry or cold to hot. From dense forests to snow-capped peaks, it's feast or famine in the eastern part of the continent, producing some of nature's ultimate daredevils and survivors.

Brazen lizards in the Serengeti hunt for flies on the backs of sleeping lions, a behavior discovered by a local scientist but never before filmed.

At more than four feet tall and with a massive bill, the shoebill is one of the most bizarre-looking birds on the planet, but also one of the most secluded. Learn new secrets about the lives of these giant birds.

And in the skies, giant eagles stalk the largest mammal migration in the world, all while tusk-shattering battles rock the plains below.