Fact 1: An animal requires warmth for survival.

Fact 2: Wollies are made of fur and worn for warmth.

Given the two facts above, answer the question "What physical feature of an animal can help it survive?" with the following options: 
- heat
 - coat
 - fur
 - fire
 - body
 - nourishment
 - size
 - housing


 

   fur      