The olm or proteus (Proteus anguinus) is an aquatic salamander in the family Proteidae, the only exclusively cave-dwelling chordate species found in Europe. In contrast to most amphibians, it is entirely aquatic; it eats, sleeps, and breeds underwater. Living in caves found in the Dinaric Alps, it is endemic to the waters that flow underground through extensive limestone of karst of Central and Southeastern Europe, specifically southern Slovenia, the Soča river basin near Trieste, Italy, southwestern Croatia, and Herzegovina.
It is also occasionally called the "human fish" by locals because of its skin color, similar to that of white people (translated literally from Slovene: človeška ribica and Croatian: čovječja ribica), as well as "cave salamander" or "white salamander". In Slovenia, it is also known by the name močeril, which translates as "the one that burrows into wetness". It was first mentioned in 1689 by the local naturalist Valvasor in his Glory of the Duchy of Carniola, who reported that, after heavy rains, the olms were washed up from the underground waters and made local people believe that they saw a cave dragon's offspring.
An olm is an amphibian. Olm may also refer to:
Girl I wanna thank your mama
For making such a beautiful daughter
Girl you know your looking lovely
Got all the supermums looking ugly
And I know, I know
You cant, you cant
I know you cant help it baby
Alright, alirght
Okay, okay