A second strategy would be to insert a gene in female toads which would allow them to only create male offspring.

By this method, adult females parthogenetically create female offspring, and males do not exist.

In the case of the boa constrictor, it can create both male and female offspring parthenogenetically.

These include the ability to create viable offspring, and morphological similarity.

Some years later, other Japanese scientists created female offspring by combining the eggs of two adult mice.

As the plants create offspring, the scientists select for the traits they wish to perpetuate and plant them.

According to Young, when a couple first become gods and goddesses, they first begin to create spiritual offspring.

Boys were allowed to watch the athletes, in the hopes of creating marriages and offspring.