Ursus maritimus—the polar bear.There’s a reason that these animals have become the poster children for climate change. For many of us, these majestic creatures take on mythic proportions—and ...

Over the years, scientists have uncovered an evolutionary path suggesting that polar bears are a relatively new species, and actually a subspecies, of Ursus arctos, more widely known as the brown ...

Historically, grizzly bears (Ursus arctos horribilis) inhabited most of the western contiguous United States, while black bears (Ursus americanus) were common in forested areas throughout the country.

Florida's invasive pythons are well-known by now, but they aren't the deadliest creatures in the state. The true deadliest ...

Aug. 14, 2006 -- For 13 summers, Timothy Treadwell lived among grizzly bears in Alaska's Katmai National Park, endearing himself to animal lovers, angering tourists, and putting the animal's ...

Wondering, how much does a grizzly bear weigh? The answer is, it depends on age, sex, time of year, and more. Here's a full breakdown.

The animals were once nearly extinct but their numbers have rebounded thanks to a European ... The Life Ursus project began in 1999 with the introduction of three male and six female bears in ...