"In 2009, Marc Bekoff was asked to write on animal emotions for Psychology Today. Some 500 popular, jargon-free essays later, the field of anthrozoology, the study of human-animal interactions, has grown exponentially, as have the data showing how smart and emotional nonhuman animals are. Here Bekoff updates selected essays that showcase animal cognitive abilities as well as empathy, grief, humor, and love. Humpback whales protect gray whales from...

"Marrying years of behavioral and cognitive research with compelling and moving anecdotes, Bekoff and Pierce reveal that animals exhibit a broad repertoire of moral behaviors, including fairness, empathy, trust, and reciprocity. Underlying these behaviors is a complex and nuanced range of emotions, backed by a high degree of intelligence and surprising behavioral flexibility. Animals, in short, are incredibly adept social beings, relying on rules...