NingenIn 2010, a Japanese ocean research company published a YouTube video showing the ocean life that they observed. Near the end of the video, a large creature with small eyes and a large, smiling slit-like mouth can be spotted lying on the ocean floor. Though most people think that the infamous Ningen was spotted, some people say that it is most likely a snaggle-toothed snake eel.
The Ningen is described as a whale-like creature, that has anatomical similarities to humans. The creature has a face, and in some stories it is said to have extremely large limbs and/or arms and hands, about 20–30 m (65–100 feet) long. The pigmentation of this creature is said to be pale white. The creature has a large, slit-like mouth and either small or large gaping eyes.