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There is an even rarer subspecies which afaik only lives here in Slovenia - the black olm - https://en.wikipedia.org/wiki/Olm#Black_olm https://en.wikipedia.org
by pingec 9y ago
There is an even rarer subspecies which afaik only lives here in Slovenia - the black olm - https://en.wikipedia.org/wiki/Olm#Black_olm https://en.wikipedia.org/wiki/Olm#Black_olm