>>/33195/
>>/33198/
There was some idea that abnormal behaviour leads to extinction. For some reason a species behaviour changes, and they don't conform to the norms the environment forces on them, and they die out. And depending on where they stood in the food chain, or how important their existence and activity for other species (liek bees for pollination, or dodos for dodo tree) they can cause a chain reaction and mass extinction.
Maybe this also could act as a "natural" way of population control (with limits and not leading to total extinction). Whatever humanity creates it is part of nature since we are creatures of nature, and we just manipulate the things we found in nature with our ability which was given by nature (some species have gills, some thumbs and abstraction). Even if we can call the stuff "artificial" we talked about this I think. So abnormal behaviour which disadvantageous to our species, like urbanization (which leads to birthrate fall), are also "natural".