Maternal age is a factor and , according to recent research , so is paternal age .
据最近发表的一份研究报告，母亲的年龄是一个因素，父亲的年龄同样是一个因素。
Governments should also legislate to get employers to offer both maternal and paternal leave , and provide or subsidise child care .
政府还应当通过立法来让雇主提供孩子哺乳期时的母亲和父亲的假期，或提供儿童抚养补助。
Mr trivers argues that competition between our maternal and paternal genes can create " split selves " , which try to fool each other on a biological level .
These trends by themselves don 't tell us which force ( paternal , societal or otherwise ) is pushing and pulling daughters down one career path or another .
这些趋势本身没有告诉我们（父亲的，社会的或其他的）力量影响着女儿的事业道路或其他方面。
Nor can we assume , banks says , that children born to unmarried parents do not have a paternal presence , or that children born to married parents are living in a stable household .
