What eats leatherback sea turtles?

All types of sharks, specificlly Great White Sharks, eat loggerhead sea turtles. Tiger Sharks are also a predator of the loggerhead sea turtle. When loggerheads go above the surface of the water to get a breath of air, they take a long two minutes to replenish their oxygen supply. During this time, a shark(usually a tiger shark) will take advantage of the turtle and eat it then and there.