Calls Beyond Our Hearing: Unlocking the Secrets of Animal Voices By Holly Menino St. Martin’s Press, 288 pages, $25.99 In her new book, Holly Menino describes a visit to Richmond Park in England, where big, monumentally antlered red deer dominate the meadows. Their deep-throated roars keep their harems in line and intimidate rival stags. Some hinds, however, pay little attention to their stag’s roar but respond instead to the high, whinnying calls of smaller sika deer. Marching to a different drummer, the hinds stray from the fold and produce hybrid offspring with mating calls intermediate between the two species. Scientists are curious to see if this behavior will lead eventually to the evolution of a third species. Richmond Park is just one of the many stops in this fascinating book about deciphering the mystery of calls. A journalist and onetime music student, Menino wondered about the differences—and similarities—in the vocal utterances that are the “social...