Latest Ursid hybrid Stories
Polar bears have been around much longer than previously believed, and likely interbred with brown bears at one point after the two species separated, according to a Germany study published Friday in the journal Science.
The Polar Bear (Ursus maritimus) is a large mammal of the order Carnivora, family Ursidae (bears). It is a circumpolar species found in and around the Arctic Ocean and is the world's largest land carnivore. Adult males weigh from 400 to 600 kg and occasionally exceed 800 kg. Females are about half the size of males and normally weigh 200-300 kg. Adult males measure 2.4 to 2.6 m; females, 1.9 to 2.1 m. At birth, cubs weigh 600 to 700 g. Population estimates range from 16,000 to 35,000, with...
- A transitional zone between two communities containing the characteristic species of each.