Fact 1: Loud noises can cause animals to startle.

Fact 2: Thunder, however, is more than a simple, loud explosive sound following a lightning bolt.

Given the two facts above, answer the question "Thunder can do what to animals?" with the following options: 
- decrease stamina
 - It gets heated up
 - remove fur
 - kill them
 - lengthen tails
 - protect them
 - startle them
 - improve digestion


 

       startle them  