Very few attacks in Alaska. Grizzly may weigh 500 to 800 pounds, Kodiak 1500. Black bear overlap with Grizz in some areas. Entirely carniverous, mostly seals. Females mature at 4-5 years, have 1 or 2 young every 3rd year.
Females do den up so they can have their cubs.
May den under 20 or 30 feet of snow. Protected by marine Mamal Protection Act. May be hunted. Male territories are larger and overlap several female territories. Mark territories with scrapes and urine.