Many ufologists are convinced that myths, fairy tales and legends can describe not fictional creatures, but aliens. This is a kind of mixture of real observations of extraterrestrial guests and human fantasy. Perhaps one of the best examples is kappa.
Kapp arrived to us from Japanese legends. This is a water species that resembles a mixture of a frog and a tortoise (reptiloid traits) in appearance. It has membranes on its paws, instead of a mouth it can have a beak, is covered with frog skin, and has a shell on its back.
An interesting point is the fact that there is a special saucer at the top, giving the owner superhuman strength. It must always be filled with water, otherwise the kappa will die. Ufologists think that this is a kind of adaptation, inside of which there is a fluid that feeds the newcomers and allows them to survive in the earthly environment.
Japanese manuscript describing mouthguard
Kappas lodge in water (lake, river or swamp) and usually do not come into contact with people. They may accidentally drag a swimmer to the bottom, but this is perceived by them as a prank, not a deliberate murder.
It seems that this is just a part of Japanese folklore. However, there were cases when people claimed that they had seen a kappa and even caught a creature. For example, in the records of Chiba Prefecture from 1801, there is a case of water being caught on the beach near the city of Mito. The note said that the fishermen killed the monster, but nowhere does it say what happened to the remains.
Kappa remnants in a museum in Kyushu
But another case looks even more interesting. The museum on the island of Kyushu (Miyazaki Prefecture) has a very interesting exhibit, over 200 years old. On the stand are 15-centimeter part of the arm and 8-centimeter part of the leg, which allegedly belong to the kappa.
The remains themselves are the property of the Shimazu family. The story says that the ancestors of this family managed to hunt down the water one on the shore of the reservoir and shot him in 1818. Experts on folklore believe that meetings with huge salamanders became the reason for the appearance of legends. But ufologists are convinced that this is a kind of ancient aliens who have taken root in our world in the aquatic environment.
It is worth noting that these are not the first such remains. The world even saw full-fledged kappa mummies in 1603. However, examination most often shows that these are artificially created stuffed animals, formed by the use of animal parts by artists of the Edo period. In a particular case, it is not yet possible to understand, since representatives of the Shimazu family do not provide samples for research.