The Catholic view is God created the universe and set natural laws to it.
One of these laws is the evolution algorithm. It created the human body and the primitive mind in it.
In some recent point, God chose a pair of these humanoids and put a soul in them. If the sons of the first couple took theirs mates from the others humanoids it was not bestiality, because there was no difference in the material body. And theirs sons received a human soul afterwards because is believed that every soul is created directly by God.
This belief is consistent with the scientific knowledge about the most recent common ancestor and the human modern behaviour.
The recent fundamentalist view on Genesis is not the traditional view of Christianity. Saint Augustine said in the third century the Genesis account it's a theological explanation.