He’s best known for popularising the theory of evolution in his book, On the Origin of Species, but Charles Darwin also had some very unsubstantiated ideas about human beings... In a later book ...

Berra, Tim. Evolution and the Myth of Creationism: A Basic Guide to Facts in the Evolution Debate. Stanford, CA: Stanford University Press, 1990. Darwin, Charles. Voyage of the Beagle. New York ...