Worldwide, there are eight species of bear:  In addition to the North American black, grizzly/brown, and polar bears are the brown bears of Eurasia, the Eurasian black bear, and the sun, sloth, Panda, and spectacled bears.  Information on each of these species can be found by clicking on the following links.  The diagram below contrasts the range of body sizes for adults of each species.  In general, the large the average size of a species, the larger its range of sizes between individuals and between sexes.