There are few animals humans fear more than sharks. This is understandable: Sharks are big, dramatic creatures that have been permanently lodged in our culture as underwater killers since Jaws. They also kill about six people in a given year. Snakes, on the other hand, kill roughly 100,000. After mosquitoes, which spread diseases like malaria, and humans, who just murder each other, snakes are the deadliest animals on Earth.