Deep in the caves that litter the Dinaric Alps, a mountain range that stretches from Italy to Kosovo, lives one of the weirdest creatures on the planet. Unofficially known as the “human fish,” these slithering, aquatic oddballs are unlike anything else on the planet.

The actual name for these cave-dwelling salamanders is olm or proteus. Primarily, they can be found in southern Slovenia’s Soča River basin. What is it, though, that makes them so incredibly unique? Well, the best way to understand is just to take a look at them.

Once you do, you’ll be amazed they’re real.

Officially known as the olm or proteus, the “human fish” can be found in the deepest caves of southern Slovenia. They were given their name thanks to their skin’s resemblance to human skin.

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Technically, they’re not fish at all—they’re aquatic salamanders! Growing up to a foot in length, they have tiny arms and gills, and they spend their entire lives underwater, which is unusual for amphibians.

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Because they live so deep underground, they’re albino and totally blind. To navigate, they have electroreceptors that allow them to detect the electric fields emitted by other animals.


Astoundingly, their average lifespan is a whopping 69 years, and they have been known to live up to 100!


Just check them out! Aren’t they the weirdest things you’ve ever seen?

These slimy little guys are, undoubtedly, some of the strangest creatures on the planet. It makes you wonder what other sort of bizarre animals are out there in the most hard-to-reach pieces of the world?

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