Sharks consistently rank near the top of lists of American’s greatest fears. In reality, they have much more to fear from us than we do from them. Because of our actions, many species of sharks are on the verge of extinction. A recent International Union for the Conservation of Nature Shark Specialist Group report shows that fully 1/3 of open-ocean species of sharks are in danger of extinction in the next few decades. Many shark species have had population declines of over 90% in the last few decades.