Real mature, anatomical models, real mature. Get a room!
No Photoshop here! Japanese artist Iori Tomita began creating these translucent taxidermized animals for the purpose of studying as an undergraduate in Fishery/Hatchery management before the project took on a life of its own. By dissolving natural proteins in the fish Tomita is able to create this psychedelic look. Check for more pictures in the Via link!