Bears are carnivorous mammals and are classified as caniforms, or doglike carnivorous.
There are only eight species of bears which are extant, and are widespread, appearing in a wide variety of habitats throughout the Northern Hemisphere and partially in the Southern Hemisphere.
Lower Classifications/ Sub-Species of Bear:
American Black Bear
Asian Black Bear
Bears are found in sixty countries on the continents of North America, South America, Europe, and Asia
They occur in a range of habitats which include tropical lowland rainforest, both coniferous and broadleaf forests, prairies, steppes, montanne grassland, alpine slopes and Arctic tundra
The world's most widely distributed bear is the brown bear
Feed. They are opportunistic omnivores and consume more plant than animal matter. They eat anything from leaves, roots, and berries to insects, carrion, fresh meat, and fish, and have digestive systems and teeth adapted to such a diet
Bears are polygamous. During the breeding season, males take notice of females in their vicinity and females become more tolerant of males.
Courtship may be brief, although in some Asian species, courting pairs may engage in wrestling, hugging, mock fighting and vocalizing.
Ovulation is induced by mating, which can last up to 30 minutes depending on the species
Gestation typically lasts 6–9 months
Litter size numbers up to four cubs
Giant pandas may give birth to twins but they can only suckle one young and the other is left to die
Birth takes place during winter dormancy
Cubs are born blind and helpless with at most a thin layer of hair, relying on their mother for warmth
Male bears play no role in raising young.
Infanticide, where an adult male kills the cubs of another, has been recorded in polar bears, brown bears and American black bears but not in other species
Males kill young to bring the female into estrus
Cubs may flee and the mother defends them even at the cost of her life