Bears

Páginas: 4 (883 palabras) Publicado: 10 de noviembre de 2012
North American Black Bear (ursus americanus)
The North American black bear is the most abundant bear in the world. They are highly adaptable animals that are known to live in a wide variety ofhabitats, but typically inhabit forested land.
Habitat: Forested areas are the black bear’s primary habitat, but they can adapt to a variety of habitats. They typically prefer forests with an understorythat provides both food and protection. They may also inhabit low elevation swamps or high mountain meadows. They adapt well to a variety of habitats as long as they have a good supply of food, water,shelter, and space to live in.

Diet: American black bears are opportunistic omnivores, and their diet varies by season, depending on which foods are abundant. They feed on grasses, forbs, rootsand corms, berries, nuts, acorns, insects, fish, carrion, rodents, moose, deer fawns and elk calves, among other things.

Reproduction: American black bears mate in late spring or early summer, butthe embryo does not start to grow until the female enters her den in the fall, and pregnancy is dependent on the bear gaining enough bodyweight to support cubs. Cubs are born in January or Februarywhile the female is denned. Cubs weigh about 1/2 pound at birth.

Brown Bear (ursus arctos)
The brown bear is a wide ranging animal that requires vast tracts of wild, roadless land. Accordingly, thisspecies is considered to be an enduring symbol of true wilderness in North America. Brown bears have been called “the bear with too many names,” because their wide variety of sizes and colors leads tomany different common names.
Habitat: Brown bears can be found in a variety of habitats, but they prefer wilderness regions containing river valleys, mountain forests, and open meadows, with lowroad-density. Home ranges are among the largest of all land mammals: up to 800 – 1000 square miles, but in prime habitat with abundant food sources, some home ranges may be as small as 10 – 24 square...
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