Leopard Shark
Obviously, this houndshark got its name from its leopard look. You can find them in the Pacific Ocean all the way from Oregon down to Mexico. Although, they do not typically pose a threat to humans, one attack on a diver was recorded in 1955. You can never be too safe!
Common Thresher Shark
Just its name is enough to scare us! Luckily, most of their species will avoid humans. However, there was an attack on a human recorded, as well as four attacks on boats.