Relocated Isle Royale wolves form groups, reduce moose herd

Gray wolves that were taken to Michigan's Isle Royale National Park to rebuild its nearly extinct population are forming social groups, staking out territory and apparently mating—promising signs despite heavy losses from ...

What wolves' teeth reveal about their lives

UCLA evolutionary biologist Blaire Van Valkenburgh has spent more than three decades studying the skulls of many species of large carnivores—including wolves, lions and tigers— that lived from 50,000 years ago to the ...

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