Tsuchinoko

The tsuchinoko is one of Japan's most specifically described cryptids, and also one of its most biologically improbable. Witnesses consistently report a snake-like creature between 30 and 80 centimeters long with a body that bulges dramatically in the middle before tapering to a thin tail, giving it the rough silhouette of a beer bottle or a small baseball bat. The name means hammer's child, referring to the shape of its thickened midsection. Reports describe it as capable of leaping a full meter into the air from a standing start, occasionally curling into a loop and rolling downhill like a wheel, and in some regional variants possessing the ability to speak, lie, and develop a taste for sake.

References to the creature appear in the Kojiki, Japan's oldest surviving chronicle, compiled in 712 CE, where a similar snake deity is mentioned. The Wakan Sansai Zue, an 18th century illustrated encyclopedia, includes the tsuchinoko among its catalog of creatures. Modern sightings spiked dramatically in the 1970s when Japanese manga artist Kazuo Yagi popularized the creature in his work, triggering a wave of reports across rural Honshu and Shikoku. Witnesses have included hikers, farmers, and at least one construction crew who claimed to have seen one slither across a highway near Mikata, Fukui Prefecture.

The phenomenon has taken on a peculiarly economic dimension. Several Japanese municipalities have offered substantial bounties for the capture of a live or intact dead specimen. The town of Yoshii in Okayama Prefecture has posted a reward of 20 million yen. Itoigawa in Niigata has offered 100 million yen, roughly equivalent to $700,000 US, for indisputable physical evidence. No one has collected. The bounties are partly publicity stunts for rural tourism, but they have generated genuine search expeditions and attracted amateur cryptozoologists from across the country.

Skeptics have proposed several mundane explanations. A swollen pit viper after a large meal can take on a stumpy, thick-bodied appearance. The introduced blue-tongued skink from Australia, occasionally sold in the Japanese pet trade and sometimes released, has the right general shape. Misidentified moles or hognose snakes might also account for some sightings. But the tsuchinoko's reported ability to jump, a behavior no known Japanese snake exhibits, keeps the legend stubbornly outside the catalog of known animals, and every few years a new blurry photo emerges from a mountain village to reset the search.