Fact 1: Ethologists usually study how animals behave in their natural environment.

Fact 2: Ethologists study animal behavior.

Given the two facts above, answer the question "what study animals in their natural environment?" with the following options: 
- animal behaviorists
 - it keeps an organism warm
 - animal owners
 - biological diversity
 - animal hunters
 - retaining heat
 - by indirect light
 - animal eaters


 

 animal behaviorists        