These ants build tall nest hills to help show the way home

Desert ants living in Tunisia’s flat, featureless salt pans create landmarks to aid navigation

A close up photo of a forager Cataglyphis fortis ant standing on a brown sandy surface.

A forager Cataglyphis fortis ant stands on the sandy surface of a hot salt pan while looking for food.

M. Knaden

Some ants have figured out how to keep from getting lost: Build taller anthills.