The Simian Tongue: The Long Debate about Animal Language

In the early 1890s the theory of evolution gained an unexpected ally: the Edison phonograph. An amateur scientist used the new machine—one of the technological wonders of the age—to record monkey calls, play them back to the monkeys, and watch their reactions. From these soon-famous experiments he judged that he had discovered “the simian tongue,” made up of words he was beginning to translate, and containing the rudiments from which human language evolved. Yet for most of the next centur...