These perspectives, which technically were written by primates, describe the study and interpretation of primate behavior, and implications to knowledge about learning, cognition, language and tools. Topics include Rumbaugh's studies in comparative psychology, the role of apes in intelligent science and conservation, studies at the Great Ape Research Institute, the Darwinian aspect of the continuity of cognition across species, apes' contributions of personality to the study of behavior and cognition, species of parsimony in comparative studies of cognition, the concept of emergence, needs for new methods of assessment, the transfer index, list-making and mathematical monkeys with route-planning skills, prospective control, animal language from the past to the future, comparative psychology and language, the neurophysiological perspective, the emergence of language and toolmaking, and a case study of learning to make tools. Annotation ©2007 Book News, Inc., Portland, OR (booknews.com)