Talk:Alien Containment/@comment-96.42.217.237-20170320005329/@comment-27388718-20170511213822

Because if one of them had a genetic deformity(say, cancer), then its baby would have the same problem because it's basically a clone of the parent. In a 2-creature breeding, genetic screw-ups are generally taken care of because of the other parent. IRL, flowers with both male and female parts have mechanisms to avoid this.