'Baby dragons' hatch at Postojna Cave
In 2016 a female olm laid eggs in an aquarium at Postojna Cave in Slovenia, and the hatchlings were reported worldwide as 'baby dragons', echoing the 17th-century folklore.
2016 CE · 45.78, 14.20 · status: official
The account
Postojna Cave is one of the birthplaces of biospeleology, the study of cave life, and its Proteus vivarium shows the animals to visitors. Breeding in captivity is rare because olms reproduce slowly and only every few years.
The sceptical view
The animals are a known salamander species; 'dragon' was a nod to the old legend.
The researched reading
A rare event in cave biology wrapped in a centuries-old legend. The “dragons” are salamanders, and the legend itself began as a misidentification of them.
| Explanation | Weight | Why |
|---|---|---|
| Something known, misidentified | 40% | The animals are olms, Proteus anguinus, a blind cave salamander described scientifically in 1768; the 17th-century “dragon’s offspring” legend recorded around Valvasor’s time arose when floods washed these pale, limbed creatures out of the karst. The 2016 eggs and hatchlings were monitored by cave biologists in an aquarium. |
| Undetermined | 30% | The share a generic explanation had beyond what has been shown for this case: it fits many cases like this one, but has not been demonstrated for this one. |
| A cultural story | 26% | Calling the hatchlings “baby dragons” was a deliberate nod by Postojna Cave and the press to the local legend; the case is a modern retelling of folklore around a well-understood animal. |
| An unknown or out-of-place animal | 1% | The species is described and studied; only its slow breeding is poorly known. |
| A hoax or fabrication | 1% | The breeding is documented by the cave’s biologists and later display of the young. |
| Perception, memory or mind | 1% | No perception is in question. |
| Genuinely anomalous | 1% | Nothing anomalous is claimed or observed. |
Official position: Postojna Cave and its biologists reported a rare captive breeding of the olm.