Fact 1: Fat is used to keep animals warm.

Fact 2: Additionally, a layer of fat beneath the skin provides insulation.

Given the two facts above, answer the question "How does insulation help animals?" with the following options: 
- stability
 - morality
 - sharks
 - fur
 - survive
 - electrical conductivity
 - fibers
 - warmth


 

        warmth 