Dr. SYLVIA EARLE is a National Geographic Explorer-in-Residence, a marine biologist, and an oceans ambassador. She has been named Hero for the Planet by Time magazine. She's the author of three previous books for children, Dive!, Hello Fish!, and Sea Critters. School Library Journal described the spirit of Dr. Earle's books when reviewing Dive!: "Earle uses a winning combination of factual information and genuine enthusiasm to encourage a new generation of aquanauts." Earle is also the author of numerous books for adults including: Sea Change: A Message of the Oceans, and National Geographic's Wild Ocean and Atlas of the Oceans. When not underwater, Sylvia lives in Oakland, California.