You are presented with the question "There are what who study how animals behave in their natural environment." and the following answer choices: 
- infants
 - heat or cold
 - insects
 - sensory neurons
 - scientists
 - people
 - humans
 - reptiles

Now knowing that ethologists usually study how animals behave in their natural environment and ethologists are scientists who study animals in their natural habitats, choose the best answer.


 

     scientists    