You must live like an ant and live in a ant hill and make a giant nest.You need a breeding chamber so get toomanyitems and spawn a spawner to get fellow ants.TIP:you can shange the spawner type in toomanyitems config.

Achievements for spawning rights

1: I iz the king/queen of ants:make 2 chambers:spawn 1 wood shovel
2: Death to the enemy ants!:kill ten hostile mobs:spawn 1 sapling
3: I am 1 of many:Have 2 breeding rooms and at least 5 fellow ants:spawn 5 spawn eggs
4: Thanks for the help:Have 2 players help you:spawn 5 villager eggs