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 … 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.

They’re found throughout north america Two lineages evolved from u. 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).