How do you look at the world if you were a dark blue ant? The butterfly looks inconspicuous - small, brown, with wings that only shimmer black-blue when you look closely. But his lifestyle is adventurous: the females lay their eggs on the flowers of the large meadow button; the larvae feed on it and grow until they produce a fragrance that fosters ants' offspring from their own colony. Hidden under this olfactory camouflage cap, the butterfly larvae can be carried into the nest, where they can behave thanklessly and eat the ant eggs. When they are full, they pupate, transform into moths and finally climb out into the open. In this way, the ant bluebird populates a huge area from Spain to the Urals - at least for now.