The workers, who act as nurses, are very kind to the young larvæ.[3] How do they wash these little things? They lick them all over, as the cat licks the kitten. They use such care that they keep them nearly as white as snow.
The nurses feed the baby ants four or five times each day. The nurses prepare the food in their crops, to make it soft and fit for the little ants.
The nurses stroke and smooth the larva baby. It seems as if they patted and petted it. When the weather is cold, they keep the larvæ in-doors. When it is warm and dry, they hurry to carry them up to the top of the hill. They place them there to bask in the sun. If any rain comes, or the hill is broken, the nurses run to carry the babies to a safe place.
When the larva is full grown, it spins around itself a little fine net, which wraps it all up. When people see these white bundles in the ant-hills, they call them “ant-eggs.” They are not eggs. They are pupa-cases. In them the baby ants are getting ready to come out, with legs and wings, as full-grown ants.
The pupa-cases are of several sizes. The largest ones are for queens and drones. The next size holds large workers; the smallest cases hold the smallest workers.
There are often in the hills very wee ants called dwarf ants. When you study more about ants in other books, you can learn about the dwarfs.
After the ants have been in the little cases some time, they are ready to come out. The nurse ants help them to get free.
Many hundreds come out of the cases. They crowd the old home so full that they can scarcely find room to move about.
Then they see the light shine in at the little gates on the top of the hill. They feel the warmth of the sun. They crawl out.
They push upon each other. The hill is not wide and high enough for so many uncles and cousins and sisters and brothers. They act like great crowds in the streets at a big parade, each one struggles for his own place.