When it’s the winter and their natural food resources are scarce, these animals turn to food waste. Some people even feed these animals. Schell advises not to do that, by the way. “So that means that those organisms can have a smaller home range, can have greater reproductive success, which has been shown in multiple studies, and you can fit more of them in a small space. So it’s like, it’s kind of just like that city effect, same thing with human beings,” Schell said. And just like with us humans, there are downsides to city living for animals. For starters, human food is really no...