These cute bear cubs are taught a lesson in survival by their mama bear.
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Natural World: Ghost Bear
In the vast wilderness of Canada's west coast lie forests that are home to North American black bears that through a quirk of genetics are born pure white and known as ghost bears. Canadian film-maker Jeff Turner and his own family spend a year following a she-bear and its cubs as they coped with the constant threat of hunger and potential predators all around.
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