You can draw out a graph and roughly correlate the duration of childhood helplessness with paternal investment.

我们可以将宝宝无助的幼年时期与父母投入养育的持续时间的相关性粗略的绘制出图表。

youdao

This mattered, for there was also a strong connection between paternal investment and a child's nutritional state.

这很重要，因为父亲投入和孩子营养状况之间有很大的联系。

youdao

The scores were combined to create a paternal-investment index which ranged from a high of + 4 to a low of -4.

把得分相加，就会得出最高4分最低- 4分的父亲投入指数。

youdao

This mattered, for there was also a strong connection between paternal investment and a child's nutritional state.

ECONOMIST: Paternity and parental investment: Like father, like son | The

As for concerns over paternity, fathers instinctively provide the greatest investment in children who look like them, and maternal grandmothers (the lone grandparent who has no paternal uncertainty) tend to be the most involved.

ECONOMIST: Baby you can drive my genes