Fact 1: Harming an animal species causes that animal 's population to decrease.

Fact 2: Goats are four legged animals.

Given the two facts above, answer the question "what can be harmed to cause its population to decrease?" with the following options: 
- death
 - snail
 - squids
 - toads
 - elms
 - Injury
 - goat
 - clams


 

       goat  