The ayu, or sweetfish, is a delicacy in Japan and has opaque scales. However, the discovery of an ayu with transparent scales in a Japanese Fishery has surprised both Japanese fishermen and scientists.
The odd looking fish was found in the Gifu prefecture, and was about 15 centimetres long.
The unique see-through ayu was found among a batch of 300,000 fish.
A research center had kept the specimen in an aquarium to find out the cause of the mutation, but sadly the fish died at the end of the month due to unknown reasons.
This article was contribute by the STOMP Team.
Images 1 shows the see-through ayu. Image 2 and 3 show man-made see through fish. And the rest of the gallery shows other weird sea creatures and animals.