AAH arguments made by Morgan have asserted that female behavior was the most compelling driver of human evolution and that peaceful co-operation among early humans were due to largely feminine influences, Morgan being heavily influenced by the feminist movement[citation needed]. However, the extant scientific consensus is that humans first evolved during a period of rapid climate fluctuations between wet and dry periods, with a complex set of conditions existing that humans adapted to by intermingled male and female parenting efforts.[3] Also, the mainstream view states that most of the adaptations that distinguish humans from the great apes are adaptations to a terrestrial situation, as opposed to an earlier, arboreal environment. Rejected by anthropologists broadly, few of them have explicitly evaluated AAH in scientific journals, and those that have reviewed the idea in depth have been largely critical.[4] General analysis by non-specialists, such as by the news-magazine Discover, have also broadly rejected the theory.[5]