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Monk Seals on the Brink of Extinction

2m 22s
The Mediterranean and the coastal waters of North Africa and western Europe were once home to hundreds of thousands of Mediterranean monk seals. These days just 300 or so remain. Over centuries they have been hunted to the brink of extinction.
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Polar Bears Search for Scraps in Changing Climate

2m 52s
A polar bear mother and her cubs search for scraps during a too-hot summer. In the Southern Beaufort Sea, there are only about half as many polar bears as there were 35 years ago. North Alaska has the largest oil field in America, and its effects can be seen in the changing landscape and climate.
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Grizzly Bear Hunts Caribou Herd

2m
The caribou migration is a veritable feast for grizzly bears — if the bears can catch them. Grizzlies hunt all the way to the Arctic Ocean in the summer, but caribou are faster than bears on the open plain.
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Newborn Muskox's First Day

2m 54s
Within hours of being born, a muskox calf is ready to start exploring. Meanwhile, its mother keeps a careful eye on her newborn. Muskoxen were hunted to extinction in Alaska by 1860 but were reintroduced in the 1930s. There are now a few thousand in the state.
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Preview of American Arctic

30s
The Arctic National Wildlife Refuge in Alaska has long protected survivors of the Ice Age, but this frozen fortress is melting due to climate change. For the caribou, musk oxen, polar bears and Arctic foxes, the Ice Age is slipping away.
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Young Hippo Mourns Mother's Death

2m 56s
After a mother hippo loses strength in her old age and dies, predators approach her body to take advantage of this feast. Her mourning calf makes a heartbreaking decision to leave his mother’s body behind to protect himself and escape fast-chasing lions.
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Preview of American Horses

30s
American horses are icons. Mustang. Appaloosa. Morgan. Quarter Horse. Follow the history of the uniquely American horse breeds that helped shape our nation and meet the people who are continuing in the long tradition of caring for them.
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Making of "The Ocean's Greatest Feast"

10m 28s
The largest biomass migration on the planet takes place every winter along the South African coast – the annual Sardine Run. To film this mega-event, two film crews spent 4 weeks filming predators on their home turf and then following the sardine migration.
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The Largest Mass Migration on the Planet

2m 6s
Every winter, billions of sardines off the coast of South Africa embark on their annual breeding migration. The sardine run is the largest biomass migration on the planet, rivaling the great herds of the Serengeti.
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How Orcas Hunt Dolphins

3m 2s
Orcas swim thousands of miles to intercept the sardine run, but it's not the sardines they're after. They arrive to hunt dolphins, allowing sardines to swim away from their initial predators.
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How Dolphins Lead the Feast

2m 14s
Dolphins are the keystone heroes of the sardine run, acting as orchestrators of feeding events for sardine predators, such as sharks, gannets and whales. They corral sardines from the main shoal into smaller bait balls for easier feeding.
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