WASHINGTON -- Some dolphins in Australia have a special technique to flush fish from the seafloor. They hunt with a sponge on their beak, like a clown nose. Using the sponge to protect from sharp rocks, the dolphins swim with their beaks covered, shoveling through rubble at the bottom of sandy channels and stirring up barred sandperch for a meal.

Australian dolphins have been spotted using a unique, and admittedly goofy looking, method to hunt for fish: wearing sponges on their noses.