Peter Marler led the way in posing thoughtful, challenging
questions about the meaning of animal signals, the nature of the
information they convey and their function in nature. He inspired
and conducted experiments to test hypotheses about communication,
the mind, and the differences between animal communication
and language. Although he shyed away from general
theories, we are, thanks to Peter and many others, now much closer
to a broad view of how communication works in different species