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A wealth of information is contained in this account of animal cognition, which focusses on such vocal creatures as hyraxes, parrots, gibbons, and chimpanzees. Kershenbaum, a zoologist at the University of Cambridge, relates tales from his field work—including a frigid expedition to northern Italy, where the wolves he listened for all day approach in darkest night—which demystify the howls, clicks, and whistles that could otherwise pass for noise. There are myriad examples of animals communicating: dolphins, for instance, seem to name themselves. Though animal utterances are different from our own, comparing animal expression to that of humans can illuminate the complex reasons behind the evolution of communication in each species. 0 reply
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