The more creatures there are, the less chance you have of finding and obtaining the DNA from particular ones you want for hybrids your making.
In this last update, I’m beginning to really see the problem new players are going to have to grow anything good. Even with some common creatures, you just don’t see them as often. Many rare ones are now actually rare to find.
Growing the hybrids you want now really entails the use of the sanctuaries but still takes weeks to get a creature to team level, one at a time. Even keeping up with growing the new creatures is a chore. I couldn’t imagine starting from scratch again.