Fact 1: Smell is used for finding food by some animals.

Fact 2: Olfaction is the sense of smell.

Given the two facts above, answer the question "What do some animals use to find food?" with the following options: 
- Echinoids
 - breakfast
 - time travel
 - Energy
 - streams.
 - heat energy
 - nature
 - olfaction


 

        olfaction 