[5] They are found in high densities along the southern Alaskan coast due not only to the large amount of clams and sedge grass but also to the annual salmon runs; this allows them to attain huge sizes, some of the biggest in the world.

[7] To avoid confusion, many simply refer to all North American members, including Kodiaks, as "brown bears".

[10] An occasional huge male brown has been recorded which greatly exceeds ordinary size, with weights reported up to 680 kg (1,500 lb).

This bear just came out of hibernation and carried little or no fat; that means the animal would have weighed around 839 kg (1,850 lb) at the end of the summer.

[13] Although variable from blonde to nearly black, grizzly bear fur is typically brown in color with white tips.

After the salmon runs, berries and grass make the mainstay of the bears' diets, after which they put on sufficient fat reserves and go into hibernation.