A video by the team at Yellowstone national park shows the extraordinary sight of a grizzly bear hunting alongside a pack of wolves, only to make off with their prey.
in December, shows the multi-species pack hunting a large herd of elks. A few wolves break away to follow a smaller number of elks, and are successful in chasing a cow elk down.The sneaky act of one species stealing food from another is known as kleptoparasitism, or parasitism by theft.
"Bears may benefit from the presence of wolves by taking carcasses that wolves have killed. If a bear wants a wolf-killed animal, the wolves will try to defend it; wolves usually fail to chase the bear away, although female grizzlies with cubs are seldom successful in taking a wolf-kill."
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