Fact 1: Hair is a fiber that is found only in mammals.

Fact 2: Hairs and fibers are easily shed.

Given the two facts above, answer the question "asily shed fibers are found only in what?" with the following options: 
- the skin
 - mammals
 - goats
 - cows
 - loose soil
 - Animal fur
 - Winter
 - autumn


 

  mammals       