Instead, the difference in the survival of chicks appeared to depend on the youngsters being looked after well by their parents, whatever they looked like.
"I'm self-employed and need the Internet for my work, but I'm failing to accomplish my work, to take care of my home, to give attention to my children," she wrote in a message sent to the group.
They had three children in the early stages of their marriage, and later, as he became increasingly incapacitated, she devoted herself to catering to his every need.
Men make no less contribution to a family than women. While women look after children and seniors at home, men are out drinking with business partners for the family. It is not easy, either.