PLANET EARTH 2: GRASSLANDS

Grasslands cover one quarter of all land and support vast gatherings of wildlife, but to survive here animals must endure the most hostile seasonal changes on the planet. From Asia’s bizarre-looking saiga antelope to the giant anteaters of Brazil, grassland animals have adapted in extraordinary ways to cope with these extremes. In the flooded Okavango, lions take on formidable buffalo in epic battles, on the savannah bee-eaters take advantage of elephants to help catch insects and, on the freezing northern tundra, caribou embark on great migrations shadowed by hungry Arctic wolves.

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