Very fun idle game! Love the little animation for when the shop is opened and closed, and the way my fiendish scavengers scurry to and fro from their unfortunate quarry.
As the other guy mentioned, negative ants are possible. Though I must say that the way this bug allowed me to generate massive legions of ants increased my enjoyment of the game.
I dunno for sure, but if I had to take a guess as to what causes this bug, perhaps there’s a “== 0” check that would be better off as a “<= 0”?