Im still very confused how we got on the subject of religion, but as a wise man once said "What ever."
As our population increases so does the land we need to house and feed the population to continue our species and civilizations. ALL animes do this, all be it not so much in a civilization sense but rather pack and hurding animels. The larger the pack/hurd gets the more land and territory and resorces they need, much similar with us Humans.
Also many animels of any kind are opertunistic. Cyoties are a prime example, they are not afraid of Humans and learned to live along side us, much rather to scavange then hunt by diggering our trash or picking off smaller animes such as cats, dogs, possoms, racoons...ect. As the animels lose their land they try and adapt to ours and many have been rather successfull. Cyoties, Deer, Possoms, Racoons, some Wolves, and Mountain Lions to name a few. So by them adapting to our enviroment the clashes will happen. How ever engineers have been making plans to grow up instead of out to.