Kronstadt, Jonathan. Ocean extremes : life in the darkest depths and under the ice / by Jonathan Kronstadt ; with Sharon Katz Cooper, consultant. - New York : Scholastic Inc., c2005. - 48 p. : col. ill., col. map ; 26 cm. - Undersea university . ISBN: 0439711908 LCCN: 2006531185 Subjects--Topical Terms: Deep-sea animals--Juvenile literature.Animals--Polar regions--Juvenile literature. LC Class. No.: QL125.5 / .K76 2005 Dewey Class. No.: