This is shadow, he is a silver-backed Grizzly Bear.
Second only to polar bears, brown bears or grizzly bears are the largest land carnivores. Most grizzly bears are medium brown but they also come in every shade from sandy blonde to mahogany. The male and female bear are often referred to as a "boar" and a "sow" and the young are called "wobs".

The grizzlies have lost almost 1/4 of their Canadian range while 99% of the grizzly bears in the lower 48 US states are now gone. Their diet consists of a variety of food depending on the time of the year, feeding largely on plant material, but also consuming lichen, fungi, insects and grubs as well as meat. Most of their diet is dictated by whatever is seasonally available.

Grizzly bears live 15 - 34 years in the wild and as long as 47 years in captivity.
Taken at the GVZ in Aldergrove, B.C.