Title: Wild Justice: The Moral Lives of Animals / Edition 2, Author: Marc Bekoff
Title: The Quest for Food: A Natural History of Eating / Edition 1, Author: Harald Brüssow
Title: Biological Perspectives on Motivated Activities, Author: Roderick Wong
Title: Assessments and Decisions: A study of information gathering by hermit crabs / Edition 1, Author: R. Elwood