The Olm (Proteus anguinus) is endemic to subterranean freshwater habitats of the Dinaric Karst. It is the only cave-adapted vertebrate and it eats, sleeps, and breeds underwater. The Olm has adapted to living in total darkness and can survive for up to 10 years without food. The Croatian Herpetological Society – Hyla and the Croatian Institute for Biodiversity are working on Olm conservation within the PROTEUS project. Leer más.