Taking testosterone while you are pregnant can cause a female fetus to develop male traits.

But Mr. Grant said that other big companies were now developing such traits.

What causes one group of animals to split off from the rest of the species and develop new genetic traits?

Some strains develop traits that can be harmful to a host animal.

Males were in charge of hunting, and presumably through this activity developed important evolutionary traits, such as increased brain size.

I spent most of my first life living among humans, developing human traits, but most of that is lost to me now.

Children with certain genetic disorders can also develop similar traits.

This means that they have developed traits to other species that live in such climates, but are not related to them.

From year to year, they all seem to develop even more interesting and charming traits than before.

We developed traits based on what we were not - passive, weak, soft, feminine.