In the forties an American psychologist and his wife tried to teach a chimp actually to speak. At the end of three years the creature could pronounce, in a hoarse whisper, the words “mama,” “papa,” and “cup.” After another three years of training she could whisper, with difficulty, still only “mama,” “papa,” and “cup.” The more recent successes at teaching chimpanzees American Sign Language are well known. Just the other day a chimp told us, if we can believe that we truly share a vocabulary, that she had been sad in the morning. I’m sorry we asked.
Lol
