menopause results in females increasing their opportunity for intergenerational help by increasing their lifespan overlap with their grandoffspring and offspring without increasing their reproductive overlap with their daughters. #evolbiol#feministskywww.nature.com/articles/s41...

The evolution of menopause in toothed whales - Nature

A comparative analysis tests competing evolutionary hypotheses in toothed whales in which menopause has evolved many times as females extended their overall lifespan but not their reproductive lifespa...