Thorny is a short, grumpy ant who is a member of the Council of Ants. He usually carries an abacus to calculate the number of seeds that have been harvested so far. He often stands watch to see if Hopper and his gang are coming. Thorny greatly dislikes Flik's harvesting ideas and bothersome inventions. However, by the end of the movie, Thorny comes around to Flik and realizes he has misjudged him. He even uses Flik's grass seed harvester, as do the rest of the colony.