Самцы, самки и гены
Genes that are advantageous to males may hinder fitness in females of the same species, according to a study of wild red deer in this week's Nature.
The authors found that male deer with relatively high fitness over their lifetimes tended to have daughters with relatively low fitness. Using an alternative statistical approach, they also found that male deer that sired the most offspring had female relatives with fewer calves, while male deer with fewer offspring had female relatives with more offspring.
The researchers did not find that highly fit females had less fit sons, however.