The peacock mantis shrimp’s 2/10-inch-wide fist accelerates faster than a .22-caliber bullet, reaching speeds of 45 mph underwater and smacking its prey with 200 pounds of force. (S. Baron / June 9, 2012)
One in 2-5 million lobsters are blue. A genetic defect causes a blue lobster to produce an excessive amount of protein. The protein and a red carotenoid molecule known as astaxanthin, combine to form a blue complex known as crustacyanin, giving the lobster its blue color.