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.

Selection pressure is easily adjusted by changing the tournament size.

Another consequence is that they can affect natural selection pressures put on a species.

What selection pressure would force such divergences among the sexes?

The selection pressure was probably weak, because most cases occur after the age of peak fertility.

It is important to keep in mind that not all conserved sequences are under selection pressure.

He placed a population of them under strong selection pressure for inherent tameness.

Complex adaptations have developed because in certain circumstances the same selection pressure has been maintained over a long period of time.

So the absence of selection pressure, he suggests, has resulted in rapid evolutionary change.

This may be due to alternative mating techniques that reduce selection pressure on body size.

Beyond that point where technology becomes integral to species survival, what selection pressure is there to increase brains?

Selection pressure also came from the weakness of Homo.

Sperber says this could suggest that there are not just individual, but group selection pressures at play.

In both cases this interaction may evolve to a full resistance gene given the appropriate selection pressure.

Obviously selection pressure must have been very strong.

There is a selection pressure to evolutionary language development and the basis for that is trust.

Selection pressures pull in different directions, and the adaptation that results is some kind of compromise.

A characteristic may degenerate despite being of some use if there is very little or no selection pressure on the genes associated with it.

Every solution, however, causes a new set of selection pressures that threaten society's viability.