Earth

Earth is a 2007 nature documentary film that takes the viewer on a journey across the planet, following three animal families – polar bears, African bush elephants, and humpback whales – as they navigate their habitats in response to the power of the sun and changing seasons. A mother polar bear leads her cubs through the Arctic tundra, while African bush elephants migrate through the Kalahari Desert in search of water. Meanwhile, a humpback whale mother guides her calf on a 4,000-mile journey south to the rich feeding grounds near Antarctica, the longest migration of any marine mammal.