Good father is not sure he is quite good

Good genes for men aren't necessarily good for women. At least in red deer, good males often have less successful daughters. The results may explain the contradiction why bad genes are still maintained.

Katharina Foerster at the University of Edinburgh, England, and her colleagues analyzed data collected over the past 40 years in Rhum Island in Scotland. They measure the success of each deer Based on the longevity and survival rate of the offspring.

The most successful deer are often the father of less fortunate girls."Those deer have a poor reproductive rate and produce fewer babies than average," Foerster said. Meanwhile, the male deer that produced the daughters successfully did not actually produce many children.

This incompatibility helps explain why some bad characteristics do not die."We see this antagonistic selection because males and females have to fulfill different requirements to succeed," Foerster said.

The group believes that the swap in this gender battle can occur in any species with physical differences between males and females, including humans.

MT