Polar Bear Social Structure. Polar bear do not live in groups and they are most of the time lonely creatures. The only social structure recognized by scientists is the bond between the mothers and their offsprings.
There are great differences between polar bears and other bear species. While it is believed that the brown bear is the closest relative, evolution created a large number of adaptations which make them very different.
Polar Bear Enemies Since Polar Bears find themselves at the very top of the food chain out there, they don’t have many natural predators at all. Ironically, the only one they have to fear in their natural environment is their own kind.