Second Nature: Environmental Enrichment for Captive Animals (Zoo and Aquarium Biology and Conservation Series)
by David J. Shepherdson,Jill D. Mellen,Michael Hutchins
ISBN 13: 9781560983972
Format: Illustrated (376 pages) Publisher: Smithsonian Books Published: Sep 1999
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Great Apes and Humans: The Ethics of Coexistence (Zoo and Aquarium Biology and Conservation Series)
by Benjamin B. Beck,Tara S. Stoinski,Michael Hutchins,Terry L. Maple,Bryan Norton,Andrew Rowan,Elizabeth F. Stevens,Arnold Arluke
ISBN 13: 9781935623588
Format: Illustrated (416 pages) Publisher: Smithsonian Institution Scholarly Press Published: 05 Aug 2014