Do mothers manipulate grandparental care?

Abstract

Many studies have been done on grandparental investment, asking why grandparents distribute their resources skewered. Maternal grandmothers invest most, and parental grandfathers invest least in their grandchildren. Here resemblance is used as an indicator of kin, asking if grandparents feel their grandchildren resemble them and looking at how they invest in these grandchildren. Daughters do not more frequently talk about grandparents resemblance to grandchildren than sons. Yet, when both sons and daughters are reported to emphasize resemblance between grandparent and grandchild, daughters are more intensively arguing that grandparents resemble the grandchildren than sons. It appears that daughters are more intensive that sons about their children's resemblance to their parents possibly to influence their parents investment.