Fact 1: Threatening behavior causes a fight-or-flight response in animals.

Fact 2: Goats are four legged animals.

Given the two facts above, answer the question "what does threatening behavior cause a fight-or-flight response in?" with the following options: 
- Species
 - bears
 - ants
 - goats
 - humans
 - gravity
 - h2o
 - Mammal


 

    goats     