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Olm (Proteus)

Proteus anguinus

VU — Vulnerable

Description

A blind, pink cave salamander that lives its entire life in darkness. Has external gills, can survive 10 years without food, and may live 100+ years.

CategoryAmphibian

Size20–30 cm

PopulationUnknown

HabitatUnderwater caves (complete darkness)

Range

Dinaric Alps caves (Slovenia, Croatia, Bosnia)

Threats

Water pollutionHabitat disturbanceClimate change

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Olms can live over 100 years, go a decade without food, and a single individual was observed sitting motionless in the same spot for 7 years straight!

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