 You can protect yourself by swimming in groups and staying out of the water when it's dark out. If you see a shark, remain calm and move away from it. And if it attacks you, experts say to fight back by hitting it in the eyes or gills. Joe Hernandez, NPR News. Cradle features prices closed higher today. Oil up 69 cents a barrel to settle at 82.10 a barrel in New York. I'm Jack Spear, NPR News in Washington.