Arthur, the oceans are so vast that there are a lot of creatures still undiscovered by us. There are depths and distances humans cannot easily get to, so a robot fish is a really unique and clever way of overcoming this issue. A fish would go unnoticed by other sea life, so it would cause little disturbance, and in echoing the movements of a fish, it would make it easier to navigate through seas. You have included some really great features too, the claws would be helpful in moving past items or examining them and the night vision light would mean we always had a clear view of the ocean! Amazing work little inventor, well done!
