Elaine Morgan, Welsh writer, aquatic ape hypothesis (died 2013)

Elaine Morgan OBE, FRSL, was a Welsh writer for television and the author of several books on evolutionary anthropology. She advocated the aquatic ape hypothesis, which advocated as a corrective to what she saw as theories that purveyed gendered stereotypes and failed to account for women's role in human evolution adequately. The Descent of Woman, published in 1972, became an international bestseller, translated into ten languages. In 2016, she was named one of "the 50 greatest Welsh men and women of all time" in a press survey.

The aquatic ape hypothesis (AAH), also referred to as aquatic ape theory (AAT) or the waterside hypothesis of human evolution, postulates that the ancestors of modern humans took a divergent evolutionary pathway from the other great apes by becoming adapted to a more aquatic habitat. While the hypothesis has some popularity with the lay public, it is generally ignored or classified as pseudoscience by anthropologists.

November 7 is the 311th day of the year in the Gregorian calendar; 54 days remain until the end of the year.