The entirely aquatic salamander, known as the olm (Proteus anguinus), is Europe’s most impressive cave-dwelling vertebrate. Or, more accurately, it is Europe’s only cave-dwelling vertebrate.
An Electrifying Creature: Proteus Anguinus

Saving weird and wonderful animals from extinction
The entirely aquatic salamander, known as the olm (Proteus anguinus), is Europe’s most impressive cave-dwelling vertebrate. Or, more accurately, it is Europe’s only cave-dwelling vertebrate.
Biodiversity is crucial for healthy ecosystems, so we must protect wildlife based on their needs, not our values
Wildlife populations have declined by a shocking 68% since 1970, and we are running out of time to stop this trend.