Did you know that in times when people still believed that dragons lived in caves, they called these creatures "baby dragons"?
Because of their small size and red gills, reminiscent of an ornate baroque collar or ruff, people once believed them to be the young offspring of dragons, washed to the surface by underground rivers.
The human fish or "olm" (Proteus anguinus), to give it its proper name, was first scientifically described in the 18th century. It is the only cave-dwelling vertebrate in Europe and the largest cave animal in the world.
If you would like to see it in its natural environment, then a visit to Planina Cave, where there is a permanent and very sizeable olm population, is an excellent opportunity to do so.