Large, heavy mammals, bears are closely related to dogs and raccoons and are able to stand erect. Other defining characteristics include good eyesight, fair hearing, and a keen sense of smell. Although some species are undeservedly reputed to be fierce and aggressive, bears are typically peaceful, solitary creatures that prefer to roam areas undisturbed by humans. A variety of threats and conservation concerns face all eight species of bear. Available bear habitat is continually shrinking due to human activities.
Mortalities sometimes result from human fear of bears.
Poaching to supply an increasing demand for bear parts to supply the trade in traditional Asian medicines is also a significant threat to the survival of many bear species. The international trade in bear parts has been particularly devastating to the bears of Asia. American Black Bear Native only to North America, the black bear is highly adaptable. It can be found in habitats as diverse as the humid bayous of Louisiana, the rain forests of the Pacific Northwest, and the tundras of Labrador. Asiatic Black Bear Medium-sized and predominantly black, the Asiatic black bear is similar to its American cousin.