Title: Communication and Noncommunication by Cephalopods, Author: Martin Moynihan
Title: Communication in the Chiroptera, Author: M. Brock Fenton
Title: Deep Thinkers: Inside the Minds of Whales, Dolphins, and Porpoises, Author: Janet Mann
Title: Kanzi: The Ape at the Brink of the Human Mind, Author: Sue Savage-Rumbaugh
Title: The Origins of Language: What Nonhuman Primates Can Tell Us, Author: Barbara J. King
Title: The Song of the Ape: Understanding the Languages of Chimpanzees, Author: Andrew R. Halloran