Due to its vast size — stretching from Canada and Greenland in the north, to Mexico in the south — North America contains a ...

Most of us know to give bears a wide berth in the wild. But there are gentler wild animals, even prey, that can get very aggressive in the wrong situations.

Picture golden grass swaying under a big Montana sky, bison grunting as they kick up dust, and wolves slinking through the ...

Adults usually clock in between 150 and 600 pounds, though some northern males can top 700. Shockingly nimble, these things can run up to 30 miles per hour, climb trees like squirrels, and swim across ...

Dam-building beavers are known for changing their ecosystems; muskrats can substantially alter vegetation structure.

Current laws that deem species safe from extinction ignore their ecological role, geographic range and genetic diversity, as ...

Specifically, whether or not certain fossils found in Montana belonged to a young Tyrannosaurus rex or a completely separate, ...

New research suggests that dinosaur populations were thriving in North America before the asteroid impact 66 million years ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, ...

A trove of specimens from New Mexico may help settle a long-running argument about the diversity of dinosaurs before their ...

North Shore Animal League America, the world’s largest no-kill animal rescue and adoption organization, hosted a “Celebration of Rescue” on Friday, June 14 at the spectacular TriBeCa Rooftop under the ...

North Shore Animal League America greeted a plane full of kittens and puppies Thursday, Oct. 23, at Republic Airport in ...