A mud-caked buck appears out of nowhere, his legs stained from the bog. The deer scans its surroundings. He’s an old deer that knows just how perilous life can be outside the security of his swamp.
PBS show "Nature: Expedition Killer Whale" reveals an hour-long lesson where adult orca teach calves how to hunt seals off Antarctica. When you purchase through links on our site, we may earn an ...
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