Verkkoultimately, with an illustrative model, this article proposes a strong overlap of animal communication with language. This approach illuminates more. Verkkoin this setting, washoe learned to communicate through signs about the world around her utilizing both concrete and abstract concepts such as bird,. That began to change in the 1990s, when linguists, evolutionary. Verkkothe new empiricism may help resolve one of the field's liveliest debates: Whether the first human language consisted of gestures, similar to today's. Verkkosince the 1960s, several animals have learned to sign or communicate with an artificial language, demonstrating the continuity between. Verkkoone can then investigate the structure, function and evolution of these components by drawing on comparative studies of animal communication. For various reasons, at the end of 1970, washoe was trans. Verkkothe notion that the noncommunicating person can be taught was developed further by the work of samuel howe with laura bridgman and, later, by lubbock and the.