What is the name and author of this one short story?

Question: What is the name and author of this one short story!?

it is about this guy who buys these animals that have wars!. They adjust to the size of the terrarium he puts them in and eventually escape!. They also worship him as a god and build monuments that reflect their opinion of him!.Www@QuestionHome@Com

Best Answer - Chosen by Asker:

Sandkings!.!.!. it's a novella by George R!. R!. Martin!.

I love that story!.!.!.!.!.!.!.!.!. nice sci-fi horror!.

It's ranked #28 as the best sci-fi short story of all time!.Www@QuestionHome@Com