New tech is helping researchers better understand Yellowstone's apex predators.
Wolves usually rely on cooperation to survive. Hunting large prey such as elk typically involves multiple pack members working together to isolate and exhaust an animal. That reality makes one ...
Add Yahoo as a preferred source to see more of our stories on Google. FILE: Wolf 1229 howling in Yellowstone National Park, which includes parts of Wyoming, Montana and Idaho. (Scott Wolff/Cry Wolf ...
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