Across evolutionary time, some of the many challenges that friendships helped to solve may have differed between men and women.... This is just a "post child"

Across evolutionary time, some of the many challenges that friendships helped to solve may have differed between men and women.... This is just a "post child" for the replication crisis. It doesn't look at region, nation, socio-economic group, gender identity and so forth. It also doesn't look at actual friendships but friendship-preferences expressed on in survey (which I might speculate would be more influenced by social expectations than actual friendships but the point is "we don't know"). And then it add "evolutionary" to give a nice feel...