Engel, Cindy. Wild health : how animals keep themselves well and what we can learn from them / Cindy Engel. - Boston : Houghton Mifflin, 2002. - x, 276 p. : ill. ; 24 cm. Includes bibliographical references (p. [233]-261). ISBN: 0618071784 LCCN: 2001-051621 Subjects--Topical Terms: Health behavior in animals. LC Class. No.: QL756.6 / .E54 2002 Dewey Class. No.: 591.5