The Apollo butterfly almost became extinct in Franconia. The biologist Adi Geyer saved him – with the help of four-legged allies.
We are lucky. “Four days ago the first males hatched”, Adi Geyer greets us happily on a day at the end of June. One, two, four: like little paper planes, the white moths glide down the cliff face with wings spread out in a V-shape, patrol to the right and left and inspect everything that is white. After all, it could be a female willing to mate. “A few years ago I dropped a handkerchief and several males jumped on it,” says the tall biologist.