Fact 1: Fat is used to keep animals warm.

Fact 2: Some animals hibernate, living on stored fat until the warm weather returns.

Given the two facts above, answer the question "what do animals use to store food?" with the following options: 
- pan
 - fat
 - Urea
 - calories
 - sugar
 - jaws
 - nest
 - carbohydrates


 

  fat       