Fact 1: Animals use saturated fatty acids to store energy.

Fact 2: Dolphins are a very unique animal.

Given the two facts above, answer the question "What do dolphins use to store energy?" with the following options: 
- saturated fatty acids
 - thermal insulators
 - kinetic energy
 - evaporation
 - Something coming from a gland
 - objects that have mass
 - it helps plants in growing
 - Positive charges


 

 saturated fatty acids        