These octopods from the genus Grimpoteuthis are so named for their prominent, unusual earlike fins that they use to help them swim (reminiscent of the Disney elephant character who used his ears to fly). These graceful, gelatinous octopuses are not only bizarre looking, but they are also marvels of evolutionary engineering. Living mostly some 3,000 to 4,500 meters (9,800 to 14,800 feet) down, they can stand pressures of more than 5,000 pounds per square inch.