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Did reintroducing Wolves to Yellowstone really cause an ecological cascade?Previous research on the effect of wolves on the food web has been criticized, raising questions about the predator’s role in the Yellowstone ecosystem.
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Primates Quiz: Go ape and test your knowledge on our closest relativesTime to stop monkeying around — just don't go bananas if you get the wrong answer!
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Science history: Dian Fossey found murdered, after decades protecting gorillas that she loved — Dec. 27, 1985Dian Fossey was a zoologist who spent decades studying the elusive mountain gorillas of Congo and Rwanda before she was murdered.
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Cats meow more at men to get their attention, study suggestsA small study reveals that cats greet male owners more vocally than female ones. But the findings could be a result of cultural norms among the participants, rather than a universal cat behavior, scientists say.
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Pumas in Patagonia started feasting on penguins — but now they're behaving strangely, a new study findsPumas in Patagonia, Argentina are eating penguins in a national park — and it's changing how the big cats are interacting with each other.
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Polar bears in southern Greenland are 'using jumping genes to rapidly rewrite their own DNA' to survive melting sea iceWarming temperatures appear to be driving genetic mutations in some polar bears to help them survive the shifting climatic conditions.
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People in China lived alongside 'chicken-killing tigers' long before domestic cats arrivedLeopard cats were living alongside people in ancient China for more than 3,500 years before domestic cats arrived from Europe via the Silk Road.
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Most modern dogs have wolf DNA from relatively recent interbreeding. Here's which breeds are the most and least 'wolfish.'About two-thirds of modern dog breeds carry some wolf ancestry introduced within the past few thousand years.
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Wolf stealing underwater crab traps caught on camera for the first time — signalling 'new dimension' in their behaviorA video has revealed never-before-seen behaviors in wolves that could mark the first case of tool use in a wild member of the wolf and dog family — and it was all for some crab bait.
