Grizzly bears are among the most studied large mammals in North America. A subspecies of the brown bear (Ursus arctos), the grizzly bear (Ursus arctos […]

Polar bears (Ursus maritimus) live in one of the most physically demanding environments on Earth. The Arctic is defined by prolonged winter darkness, extreme cold, […]

Bears are among the most recognizable large mammals on Earth, yet many people are unsure about the differences between brown bears, black bears, and polar […]

Bears rely on a combination of vocalizations, body language, and scent communication to interact with one another and to interpret their environments. Although they are […]

Mother bears invest extraordinary time and energy into raising their young. Across species—whether American black bears, brown bears (including grizzlies and Kodiak bears), or polar […]

Bear cubs represent one of the most vulnerable stages in the life cycle of any large carnivore. Despite belonging to species that often dominate their […]

The Central Role of Smell in a Bear’s Life Bears rely on their sense of smell more than any other sense. While they can see […]

Bears are commonly described as hibernating animals, but the reality is more complex. Not all bears hibernate, and even among those that do, hibernation varies […]

Introduction to Bear Hibernation Bear hibernation is one of the most studied seasonal adaptations in large mammals. Unlike smaller hibernators such as ground squirrels, bears […]

Bears prepare for winter through a coordinated set of behavioral and physiological changes that allow them to survive prolonged periods of cold temperatures and limited […]