Children's LiteratureIts common name is from the old Scandinavian word meaning "whale-horse" and its Greek name, Odobenidae, means" tooth walker," for its ability to use its tusks to pull itself out of the water. Its social behavior ironically parallels humankind: larger, pushy creatures usually have the highest social ranking. No doubt about it: the walrus is one magnificent marine mammal. Young readers, who admire the walrus and want to know more should read this book, part of the "Creatures of the Sea" series. Hirschmann presents a nicely written overview of Pacific and Atlantic walruses, their life cycle, hunting and social behavior, habitat and physical advantages for living in extreme cold. Along the way, some intriguing facts reveal themselves: walruses do not migrate on purpose, but stay on the edge of the Arctic icepack. Also, these carnivores do not usually eat fish; instead they feast on bottom-dwelling mollusks and crustaceans. Their natural enemies are polar bears and killer whales. Finally, their favorite activity is resting, of which walruses do a lot. Illustrated with color photographs, this book, with index, glossary, websites, book and video resources, should be a welcome addition to any school, classroom or public library. 2003, KidHaven Press, Ages 7 to 10.