Planet Earth

This episode deals with savanna, steppe, tundra, prairie, and looks at the importance and resilience of grasses in such treeless ecosystems. Their vast expanses contain the largest concentration of animal life. Over Africa's savanna, a swarm of 1.5 billion red-billed queleas are caught on camera, the largest flock of birds ever depicted.

Jungles cover roughly three percent of our planet yet contain fifty percent of the world's species. Experience the countless flora and fauna that inhabit these unique areas.

A look at the shallow seas of the earth, from coral reefs to kelp forests and beyond.

An exploration of the deepest, darkest realms of the ocean, spanning countless species to a depth of 2,000 meters.