SchHndbk Seals/Sireni Author:Stephen Leatherwood This companion to the highly successful Sierra Club Handbook of Whales and Dolphins includes the pinnipeds (seals, sea lions, and walruses), sirenians (manatees, dugongs, and sea cows), otters (sea and marine only), and the polar bear. The text offers definitive information on every animal, including physical description, distribution, natural h... more »istory, and the status of conservation efforts. 137 photographs; 43 color paintings.« less