JEFF LEPORE / SCIENCE PHOTO LIBRARY JEFF LEPORE / SCIENCE PHOTO LIBRARY
Brown bear (Ursus arctos). Patches of white-tipped hair give this bear a grizzled appearance. These grizzled brown bears are found in North America, and are called grizzly bears. They can be over 2 metres tall and can weigh over 300 kilograms. Brown bears are mainly vegetarian and feed on a wide variety of plants, but they will also eat meat when available, both by hunting and by scavenging for carrion. Brown bears are mainly solitary animals, foraging in mountains and river valleys in Eurasia and north-western North America. Photographed in the Rocky Mountains, Montana, USA.
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