"Talking" Orangutans in Borneo (2000) comic books 1938 or later
1st printing. Written by Dr. Nancy Briggs & Jim Ottaviani. Art by Anne Timmons. Like the other great apes, orangutans are capable of learning a propositional communication system. They also occasionally show creative use of signs and invent new signs based on natural activities such as scratching and grooming. Rinnie and Princess were able to show that free-ranging, ex-captive orangutans could learn ASL and make sentence-like combinations of signs to communicate appropriately what they saw and desired. 7-in. x 10 1/2-in., 32 pages, B/W. Cover price $3.50.