Around 51% of people are terrified of sharks but, while sharks where designed with a slightly aggressive appearance, being terrified of them is for no real reason. Sharks only attack around 62 people per year, and only about 8 to 16 percent of those attacks are actually fatal. That means sharks only kill 5 to 10 humans per year. Compared to the 433,000 deaths per year caused by sitting. Oh, and you know how many sharks humans kill per year? 100 million. That's over 3 sharks per second! Although, the lead researcher in the study actually said that the 100 million was a conservative estimate. The actual number could actually be over 270 million! That's over 8 sharks per second!