W. Tecumseh Fitch

William Tecumseh Sherman Fitch III (born 1963) is an American evolutionary biologist and cognitive scientist at the University of Vienna (Vienna, Austria) where he is co-founder of the Department of Cognitive Biology. He was elected a Member of the National Academy of Sciences in 2025.

Fitch studies the biology and evolution of cognition and communication in humans and other animals, and in particular the evolution of speech, language and music. His work concentrates on comparative approaches as advocated by Charles Darwin (i.e., the study of homologous and analogous structures and processes in a wide range of species).

Early life and education Fitch was born in Boston

Evolution of Speech

Fitch and colleagues used x-ray recordings of macaque monkeys producing various sounds to make a model of the monkey vocal tract. The model showed that a macaque could produce a range of vowels and non-vowel phonemes adequate for intelligible speech. The simulations were used to model a monkey uttering the phrase "Will you marry me?" in a recognizable manner, demonstrating that the anatomy of monkeys does not limit them from producing complex speech. In conclusion, Fitch stated that "If a human brain were in control, they could talk".