Morgan first became drawn into scientific writing when reading popularizers of the savannah hypothesis of human evolution such as Desmond Morris. She described her reaction as one of irritation because the explanations were largely male-centered. For instance, she thought that if humans lost their hair because they needed to sweat while chasing game on the savannah that did not explain why women should also lose their hair as, according to the savannah hypothesis, they would be looking after the children. On re-reading Desmond Morris’s The Naked Ape she encountered a reference to a hypothesis that humans had for a time gone through a water phase, the so-called aquatic ape hypothesis. She contacted Morris on this and he directed her to Alister Hardy. Her first book The Descent of Woman (1972) was originally planned to pave the way for Hardy’s more academic book, but Hardy never published his book.