Dire bear

"This hulking bear has bony brows ridges and claws like sickles, with a wildness and destructive gleam in it's cold piercing eyes."

- Monster Manual 3.5

A dire bear is a huge version of the typical bear.

Physical description
Most dire bears are 12 ft (3.66 m) long and weigh as much as 8,000 lb (4 tons).

Combat
Dire bears rip at opponents with their claws and can also bite. When the prey is grabbed, the massive bear will maul the creature with its ursine strength.

Personality
Being omnivorous, dire bears usually does not bother to attack creatures unless they are defending a food source or a personal domain. Dire bears are wild beasts, though, and will feast on human flesh as readily as any other game animal.

Ecology
These bears live in small groups or prefer to be alone. Many humanoids will train bears to act as guards or pets, such as hill giants and ettins.