At times they follow the salmon, but other times they appear even when there are no salmon. Many of them migrate through the archipelago, swimming from island to island throughout the year. There are packs living on the big island off the coast 13 kilometres (8.1 mi) from Bella Bella, and there is no way for wolves to get there except to swim. Sea wolves of the Great Bear Rainforest are fast, powerful distance swimmers and move stealthily in the water, their backs and bodies submerged and with only their eyes, ears and snouts peeking above the surface. Pure white individuals are occasionally seen. It is usually a mix of grey, brown, and black.
The Vancouver sea wolf is of medium size, measuring roughly 26 to 32 inches high, 4 to 5 feet from nose to end of tail, and weighing roughly 60 pounds. These wolves will also commonly feed on deer and small mammals. They also forage on barnacles, clams, herring eggs, seals, river otters, and whale carcasses. In some coastal regions, the main food source is fish, making up 90 percent of their diet, with salmon accounting for nearly a quarter of that. These coastal wolves are popularly known as sea wolves. It lives in packs of about five to twenty. The Vancouver Coastal sea wolf or Vancouver coastal island wolf ( Canis lupus crassodon) is a subspecies of grey wolf, endemic to Great Bear Rainforest and northern Vancouver Island within the Pacific Northwest Coast of North America. Historical and present range of grey wolf subspecies in North America
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