Why Do Animals Hibernate in the Winter?
As mentioned above, winter is the time when food is less and weather rough. Animals have to spend a lot of energy finding food. Even if they succeed in finding anything, which is very unlikely, it is seldom sufficient to compensate for the energy lost in searching for it. Extreme weather is also an issue, and it may even lead to death at times. A much better option is to reduce the demand for food by reducing activity, which is exactly what these animals do when they hibernate throughout the winter.