Remarkable adaptations allow polar bears to live in the frozen , but global warming is destroying their and leaving them seriously endangered. Despite being beneath the snow, cubs eventually grow into the most powerful of all four-legged animals.

Using their incredible sense of smell to track their prey, adult polar bears spend most of their lives , wandering over the vast tracts of frozen ice in search of blubber-rich prey such as , and even . They are also remarkably good and have been spotted over 60 miles from shore.

Polar bears are the largest living land carnivore.

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