Observations of the first emergence (green dots) and last retreat (orange dots) of olms in the surface pool based on direct and IR camera observations. Grey lines connect the first emergence and last retreat time of the same animal within one night.

 
 
  Part of: Premate E, Fišer Ž, Kuralt Ž, Pekolj A, Trajbarič T, Milavc E, Hanc Ž, Kostanjšek R (2022) Behavioral observations of the olm (Proteus anguinus) in a karst spring via direct observations and camera trapping. Subterranean Biology 44: 69-83. https://doi.org/10.3897/subtbiol.44.87295