Take a look at the above picture, does it ever strike to you that the fish swimming has actually a battery and motors instead of a heart and gills. The sea bream robot as it is called has been developed by the Yamamoto laboratry in Japan. The movement of fins is based on the elastic oscillation wing system which makes the movement looks very realistic.
When see it, I actually wanna eat it then a thinking just ccomes up with: Japanese eats all the fresh fish, they save them for shusi, that's why they now have no real fish for entertainment. But this robot fish is cool anyway
Videos after break