Bears
Usually Found: Worldwide
It is true that bears leave their cave environment every day to get food. Yet one cannot claim that they do not live in caves when most tend to make their home inside of them. In North America, bears usually are only found in caves where humans are rarely going to be. Thus, they tend to make their home inside caves within major wilderness areas. While bears live all over the world in numerous climates, there are some bear species that hibernate.
This means they will go into a pretty deep sleep for several weeks to months. Before doing this, they will eat a bunch of food so that they don’t have to go out and get anything else. Sadly, climate change is altering bear hibernation times. This has become such a big problem, bears are coming out as much as a month before they are supposed to.