Nature - Season 40 (2021)

From a herd of bighorn sheep and their newborn lambs to a mother grizzly bear and her cubs, animal families struggle to survive across the Rocky Mountains.

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Wildlife cameraman Gordon Buchanan leads a team using state-of-the-art cameras, offering a fresh look at the lives of some of the animals in our oceans such as sharks, elephant seals, turtles and gannets.

Wildlife cameraman Gordon Buchanan fronts the team helping scientists investigate the lives of some of Australia's most iconic animals. Koalas, fruit bats and kangaroos take the cameras into their secret worlds.

Penguins. Profiling all 18 species. Habitats and raising their baby chicks, facing various predators and environmental challenges.

South Africa's annual summer sardine migration sees billions of sardines traveling up the coast.

The history of unique American horse breeds, including the mustang, Appaloosa, Morgan and quarter horse, that helped shape the nation and the people who continue the tradition of caring for them.

Follow the life of an old hippo, a king of its kind, and discover the true character of one of Earth's largest land mammals.

Following the planet's longest land-animal migration on the Arctic National Wildlife Refuge in the northeastern corner of Alaska.

Discovering the wildlife and landscapes of Portugal, including wild horses, storks, monk seals and more, from forests to coasts.