Just in case all the real fish Die

Ryomei Engineering, part of Mitsubishi, has created a robotic fish that will, no doubt, repopulate the oceans after that apocalypse we keep hearing about. Seriously though, the thing actually does serve a purpose. It swims around, samples water quality and takes pictures. If they mix that in with a satalite uplink, some pretty powerful AI and a GPS, and we're on our way to a robot that can keep us more informed on the state of the world's oceans.