What do ant do all day?

The Black Ant Close Macro photographs

The black garden ant, also known as the common black ant, is a formicine ant, the type species of the subgenus Lasius, which is found across Europe and in some parts of North America, South America, Asia and Australasia.

During the colony's nomad phase, the ants travel all day, attacking other colonies and insects they encounter for food. At night, they build a temporary nest and keep moving the next morning. ... During this time, the worker ants make a nest out of their own bodies to protect the queen, the food, and the eggs