Sierra Club Grizzly Bear Ecosystems Project
Working to protect and restore wild grizzly populations in the lower forty-eight United States and Canada.

Grizzly Bear - Ursus arctos horribilis
Facts and photos, from the Big Zoo website.

Interagency Grizzly Bear Committee
United States government group leading the recovery of the grizzly bear (Ursus arctos) in the lower 48 states. Research activities, newsletters, bear safety advice, and online training to learn to identify different bear species in the wild.

Grizzly Bear - Eastern Slopes Grizzly Bear Project
Studying effects of human developments and activities on grizzly bears in the Central Rockies Ecosystem.

Grizzly Bear - Kamchatka: Grizzlies of the Russian Far East
An in-depth study of grizzly bear behaviour and cub reintroduction program.

Grizzly Bear Reintroduction - Bitterroot Coalition
National Wildlife Federation project reintroducing the grizzly to the Bitterroot ecosystem (Central Idaho, USA).