熊分为棕熊、黑熊、马来熊、白熊等种群。
棕熊：又称人熊，分布于我国东北、西北、西南等地。属国家二级保护动物。棕熊体型大，重400—500公斤，可直立行走。
黑熊：又名狗熊，分布于我国东北、西北、华南、湖北神农架等地。属国家二级保护动物。
马来熊：分布于印尼、马来半岛、缅甸、云南等地。属国家一级保护动物。喜爬树，是熊类中体形较小的熊。
白熊：即北极熊。生长在北极沿海，体重可达750公斤。白熊十分凶猛，称为北冰洋上的巨无霸，是陆上最大的食肉动物。
They use their exellentsense of smell to help them findfood.Bears are meat eaters，or carnivores.But most bears also eat fruits，nuts，and other foods.Bears live in North America，South America，Europe，and Asia.They do not live in Africa，Australia，or Antarctica.
Bears come in many colors and sizes and they live all over the world，except in Africa，Australia，and Antarctica.All bears have a large head with rounded ears that stand straight up.They also have four paws with sharp claws that help them to climb trees or catch food.
Brown bears live throughout northern Asia，Europe，and North America，where they feed on fish，berries，and plants.These large bears can reach weights of 1，760pounds (800kilograms).
Polar bears live on the icy ground around the North Pole.They are strong swimmers and eat many types of marine animals，including seals and walruses.
The spectacled bear is the only bear that lives in South America.It is named for the creamy white markings around the eyes that look like spectacles (eyeglasses).
The Asiatic black bear lives in the forests of Pakistan，Korea，and Japan.It has a black，shaggy coat and a light colored mark on its chest.
Sun bears live in the forests of Southeast Asia.They are good climbers and are known to sleep in trees.
What Makes a Bear a Bear？