[[Charles Darwin]] declared in ''The Descent of Man'':<ref>Charles Darwin, ''The Descent of Man'' (London: John Murray, 1901), pp. 241-42 (footnote * is a reference to ''Anthropological Review'', April, 1867, p. 236). [http://www.literature.org/authors/darwin-charles/the-descent-of-man/chapter-06.html]</ref> | [[Charles Darwin]] declared in ''The Descent of Man'':<ref>Charles Darwin, ''The Descent of Man'' (London: John Murray, 1901), pp. 241-42 (footnote * is a reference to ''Anthropological Review'', April, 1867, p. 236). [http://www.literature.org/authors/darwin-charles/the-descent-of-man/chapter-06.html]</ref> |