Every fourth year the Adams River in Canada's British Columbia turns red from thousands or sometimes millions of migrating Sockeye Salmon (Sockeye translated from Salish word for red fish) to fulfill their final task - spawning! Once they leave the Pacific Ocean drawn by an instinct to find their possible birth place they turn their color into vivid olive heads and bright red backs. Also the body shuts down the metabolism and this means they suffer hunger and energy needed to