The Sakhalin Island sea wolf was a strange animal carcass that was discovered by Russian soldiers on the Sakhalin shoreline. Sakhalin area is situated near Japan. It's the most eastern part of Russia, almost 5000 miles from Moscow.


According to a scientific survey, the bones and teeth are not those of a fish. According to its skeletal remains, it was not a crocodile or an alligator. Its skull resembled that of a canine, while the creature's rear coincides with that of a fish. Its skin was covered with long black hair.

Possible Explanations

Hypotheses include:

  • A sea serpent
  • A decaying whale carcass


Evidence includes:

  • Eyewitness testimony
  • Photographs
  • Scientific analysis


  • The thumbnail used above has gained fame on the Internet after being used as the photo for SCP-682 at the SCP Foundation website.