Robot fish

Last weekend I found myself in London. I don't mean that in a "spiritual" sense, in the way that you might go to India to "find yourself", I mean that I just happened to be in London for a friend's birthday party.

Whilst there, we decided to visit the London Aquarium. As is the case with most aquariums (or should that be aquaria?), there was a good range of fish on offer from huge great sharks to tiny clownfish (which reminds me, I must watch Finding Nemo one of these days). One tank in particular caught my attention. The sign at the top said "Robot Fish", and swimming around inside were three fish that had small flashing lights on their backs. As far as I was concerned, if it wasn't for the flashing lights, these could have been real fish. They looked like real fish, they moved like real fish and, who knows, maybe they would have even tasted like real fish!

As I walked away from the robot fish, I was left wondering... if they can make those fish look and act like real fish, how do I know that the rest of the fish on display weren't also robot fish?

I can't help feeling I've been duped.