Fact 1: Animals may compete for territory, water, food, or mates.

Fact 2: Pigs are very intelligent animals.

Given the two facts above, answer the question "what may compete for territory, water, food, or mates?" with the following options: 
- humans
 - pigs
 - Birds
 - density
 - gravity
 - clouds
 - bears
 - koalas


 

  pigs       