“These patterns indicate clear scope for what evolutionary anthropologists describe as ‘sexual conflict’ over age at marriage,” he said. “However . . . measures of women’s empowerment, mental health and fertility were all unrelated to spousal age gap."
"The age of the sediments also suggests H. sapiens made the tracks, the researchers say. . .the team dated the sediments above and below the footprints to 121,000 and 112,000 years."
"The research, from CU Anschutz, published in @evolhumbeh, presents a hypothesis supporting a role for fructose, a component of sugar and high fructose corn syrup, and uric acid, in increasing the risk for these behavioral disorders."
“This study sheds light on why that may be and indicates that, as chimps dispersed away from predictable, stable environments, there may have been a greater need for them to evolve novel behaviours to help them adapt to new, perhaps harsher habitats."