It is suggested that the difference may be related to the greater sexual selection pressure on women.
There has not been a similarly strong selection pressure on females.
The selection pressure involved here appears to be more complex than many text books might suggest.
Then there is immense selection pressure on them as they move out through the solar system.
But the removal of selection pressure can also influence evolution.
There is still much debate about the selection pressures that led to the evolution of language.
This gives rise to different selection pressure on males and females.
Another consequence is that they can affect natural selection pressures put on a species.
Selection pressure is easily adjusted by changing the tournament size.
The selection pressure was probably weak, because most cases occur after the age of peak fertility.
Słownik biologiczny