Yea, but humans often step in and thwart Mother Nature's efforts and the problem only gets worse.
I was going to buy some dog proof coon traps at the Gander Mountain in town that was going out of business. At first they were 10% off, they had at least a dozen of them, then 20% but I knew if I waited a week they would be 30% off. I rolled in on Monday to get the traps at 30% off but I was too late, someone had beat me to them and they all were gone.