Two lineages evolved from U. minimus: the black bears (including the sun bear, the Asian black bear, and the American black bear); and the brown bears (which includes the polar bear).

Bear, any of eight species of large short-tailed carnivores found in the Americas, Europe, and Asia. The sun bear is the smallest, often weighing less than 50 kg (110 pounds).

or plural bear : any of a family of large heavy mammals that have long shaggy hair and small tails and feed largely on fruit, plants, and insects as well as on flesh

Feb 17, 2026 · While several bear species of today are vulnerable to extinction, only a few bear species or subspecies have become extinct in recent history. This includes the Californian grizzly bear in the …

They can be as small as four feet long and about 60 pounds (the sun bear) to as big as eight feet long and more than a thousand pounds (the polar bear). They’re found throughout North America...

Bear Evolution Early bears Bears are the youngest of the carnivore families, having arisen from doglike ancestors during the Eocene Epoch 55 million to 38 million years ago.

There are eight distinct species of bears, each with unique characteristics and habitats, from the famous grizzly to the elusive Andean bear. Click on any species below to discover fascinating facts about …

Feb 4, 2026 · Discover Earth's largest land carnivore family with the latest bear news, features and articles from Live Science.

Bear is the common name for any of the mammals comprising the family Ursidae of the Carnivora order, characterized by a large and heavy body, thick fur, relatively short but stocky legs, and short tails.

From the largest Polar Bear roaming the Arctic to the elusive Sun Bear dwelling in the tropical forests, each bear species carries unique adaptations and qualities.