You are presented with the question "what may compete for territory, water, food, or mates?" and the following answer choices: 
- humans
 - pigs
 - Birds
 - density
 - gravity
 - clouds
 - bears
 - koalas

Now knowing that animals may compete for territory, water, food, or mates and pigs are very intelligent animals, choose the best answer.


 

  pigs       