Two exciting stories of ants for you. The first is how some species of ants have designated food testers to make sure a food supply is not poisonous before the rest of the group gets it. You can read about that one here. The second is about a study suggesting that ants are capable of performing simple arithmetic calculations. Here is the actually publication, if you want the sciency version and here is the link to Discovery’s summery.
And They All Go Marching Down