BBC America TV Schedule & Listings Guide

New science about the dynamics of emperor penguin behavior and aerial images of a polar bear swimming.

Time lapse footage taken from 2,000m down captures eels, crabs and isopods.

The bizarre looking Tibetan fox and lions as they attempt to hunt elephants.

Sir David Attenborough explores the dangerous frontiers created by the world's coasts, where animals fight for survival amid constant change; there are some unexpected residents on Namibia's Skeleton Coast.

Presented with behind the scenes content, animals battle to survive the elements in a world of extremes; from mountain summits to scorching deserts, polar tundra to deep underground, these places are rarely visited.

Sir David Attenborough follows some of the world's most amazing species, telling stories that are dramatic, thrilling, funny and sometimes heart-breaking, but always full of hope.

Forests are hidden worlds where the lives of animals are entwined, from temperate forests home to whistling wild dogs to rainforests where ninja treehoppers fight off assassin bugs.

Sir David Attenborough follows some of the world's most amazing species, telling stories that are dramatic, thrilling, funny and sometimes heart-breaking, but always full of hope.

The North and South polar regions of the Earth; the Arctic and Antarctic are the greatest and least known wildernesses.

The highlights from the series; a view of the entire polar year from winter through summer.

A look at the extraordinary riches and wonders of the polar regions and the people that have been visiting them for thousands of years.

It is high summer in the polar regions, and the sun never sets; many species take advantage of the easier conditions, but summer is a tough time for the polar bear family, as their ice world melts away and the cubs take their first swimming lesson.

Polar landscapes in autumn are transformed as the big freeze returns; in the Arctic, polar bears gather in large numbers on the coast to wait for the return of the ice; off the coast 2,000 beluga whales head for a special estuary.

Winter is the greatest test for life in the polar regions; in the Arctic, a female polar bear treks into the mountains to give birth; out on the frozen ocean, the entire population of the world's spectacled eider ducks braves the winter.

Spring in the polar regions; the greatest seasonal transformation of the planet begins with the return of the sun.

Grasslands cover one quarter of all land and support the greatest gatherings of wildlife on Earth, but hostile seasons pose a survival risk.

The hostile conditions of Earth's desert regions give rise to the most incredible survival stories on Earth.

Remote islands offer sanctuary; pygmy three-toed sloth resides on a Caribbean island; nesting albatross thrive in isolation.

The secretive lives of mountain animals; snow leopards come together to help a mother and cub, trapped between rival males.

With heightened senses verging on superpowers, over two thirds of mammal species are creatures of the night with some even returning to the dark side as their daytime world gets more and more crowded.

From the jungles of Brazil to Costa Rica, animals face life in the most competitive place on Earth.

Cities serve as places of surprising opportunity for animals to thrive.

Behind the scenes with each episode's production team, revealing the astounding challenges they encountered.

With heightened senses verging on superpowers, over two thirds of mammal species are creatures of the night with some even returning to the dark side as their daytime world gets more and more crowded.

Spring in the polar regions; the greatest seasonal transformation of the planet begins with the return of the sun.