Though brown bears are typically larger, the size difference between a mature female black bear and a juvenile grizzly can be negligible. Black Bear vs Brown Bear: Nose-to-Tail Identification.

Fat Bear Week: How Alaska's brown bears nearly double in size. Brown bears in Katmai National Park can eat up to 160,000 calories a day to prepare for winter, but how do they know it's feasting time?

Grizzly bears, for example, are a subspecies of brown bear found in parts of North America. There are many different subspecies of brown bear found all over the world, from Kodiak bears in Alaska ...

An 800-pound Alaska brown bear named Tundra just got the largest dental crown ever made. The bear is so big that the ...

Few bears ever reach 747’s girth, according to his online profile on Explore.org, the organization that runs the contest. It says he’s one of the biggest brown bears on Earth, possibly ...

Sometimes referred to as the Alaskan brown bear, they can grow up to 1,500 pounds, three times the size of Florida's native black bears. Kodiak bears belonged to a 'self-proclaimed bear trainer' ...

Apr. 8, 2022 — A recent study of Alaskan brown bears (Ursus arctos) finds that there is significant variation in the gut microbiome of bear populations, depending on where the bears live. The ...