Dorothy Leavitt Cheney
Dorothy L. Cheney studied the social behaviour, communication, and cognition of monkeys. Her goal was to uncover the selective forces that have shaped the evolution of the human mind.
I highly recommend this beautiful article in the journal "Resonance" about field biologist Dorothy L. Cheney, by her partner in research and life, Robert M. Seyfarth. "Resonance" is journal of science ed, directed mostly at the undergraduate level.