Meet the dragon's offspring

dragons offspring

The unusual looks of the olm have always sparked our imagination. At first it was believed that they were just baby dragons which the high tide brought to the surface. As a matter of fact, there might be some truth to these old beliefs.

dragons offspringThe human fish or olm is a neotenic animal. In simple words, this means that an adult keeps most of its juvenile features. This means all human fish are babies that have taken on adult functions. And if we imagine that the human fish should decide to grow up… Wouldn't it perhaps really grow into a dragon?

Apart from human fish, 99 other animal species live here permanently and 150 occasionally. This includes tiny spiders, the fascinating tiny-neck beetle, the cave water louse, grasshoppers, butterflies, water snails, bats, etc.

Owing to its early discoveries, Postojna is regarded as the cradle of the scientific discipline of speleobiology, which sets it apart as an undisputed world centre. Right before the entrance to Postojna Cave, the Passage of New Signatures contains the Proteus Cave – Vivarium. Its predecessor, the Speleobiology Station, was founded in the 1930s.



The human fish or olm: measuring 23 to 30 centimetres, the world's most famous cave animal is also the largest of all and is the only European vertebrate living exclusively underground. It feeds on small crabs, snails and other water invertebrates. It can survive up to 10 years without food and can live up to 100 years.

Source: Postojnska jama

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