Eyewitnesses described them as having a shape like a human, often with legs, arms, and even five fingers. Sometimes they are described as having large fins or mermaid-like tail instead of legs. The only visible parts of the face are like the eyes and mouth.
According to sources, members of the crew on deck to observe an object that they thought originally of foreign submarines in the distance. As they approached, however, become apparent from the irregular shape it is not man made - it's still alive. Creatures quickly disappeared under the water.
For the most part, the existence of Ningen regarded as a legend. Lots of information about the rumored creature can be traced back to a series of posts on the forum 2channel, written by a person described the experience of a friend who worked for the government on a whale research vessel.
Thread which attracted popular attention of many readers from outside the community 2channel, and the November 2007 issue of the magazine MU, Japanese publications devoted to the study of paranormal phenomena, featuring articles about Antarctica humanoids.
