Named for the fish they most commonly eat, the salmon shark is most often seen when eating discarded fish carcasses left behind by trawlers. These large sharks may also be seen gathering at the mouth of salmon spawning streams. Besides salmon, they will also eat other fish and squid. The salmon shark can reach up to 660 lbs (300 kg) and may grow up to 10 ft (3 m) long.
Although they are fish, the salmon shark is one of several sharks who give birth to live young. It may take up to 10 years before a female will start to breed and only one pup is born at a time. The young are active predators within the womb, the largest pup will usually eat their siblings.