Sea Star. They're not fish; they're echinoderms (from the Greek for spiny skin), closely related to sea urchins. The five-arm varieties are the most common, but sea stars with 10, 20 and even 40 arms exist!
Bottlenose Dolphins love to play in the waves as much as humans do, but obviously they don’t need surf boards. Dolphins are among the most intelligent animals, and their often friendly appearance and seemingly playful attitude have made them popular in aquatic shows and aquariums around the world. Not photoshop'd, this image is part of National Geographic 2011 Photo Contest. The photographer had some luck on his side having 14 dolphins line up and ride a wave.