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Inside the Fortress
1m 17s
Admiralty Island hosts the largest concentration of brown bears in the world.
NATURE brings the beauty and wonder of the natural world into your home, becoming in the process the benchmark for natural history programs.
Video description: In this conclusion, we discover how cats first crossed from Asia into North America and how they went on to become the top predators of the continent. Today there are 13 feline species in the Americas – from the mighty jaguar, to the urban mountain lion, to the curious ocelot and from the Canada lynx to the nimble margay.