National Geographic : 1990 Jul
A fierce face and fiery body mark a male sockeye ready to spawn at the end of his upstream migration (left). With strong sweeps of her tail a female chum scoops a redd, or nest, into a streambed (above). Hovering over the hollow, she will deposit eggs as a male fertilizes them. Pacificsalmon die soon after mating. Hatchlings, called alevins, consume their yolk sacs duringthe weeks they stay in the nest.