Sonnikke:
I have yet to see a human come up with a better design than God.
Actually, our techological systems often improve on many biological systems in various ways.
Compare a motorcycle to a horse. The motorcycle has these pluses:
It can travel much faster.
It never gets tired.
It never needs to sleep, even though it can.
It has very low basal metabolism (battery leakage).
It has more convenient excrement (exhaust).
It cannot panic or get startled.
It's easy to perform organ transplants on one.
Though the motorcycle has these minuses:
It cannot reproduce itself.
It cannot make itself travel on its own initiative.
It has very limited senses (fuel level, speed, etc.).
It's much more noisy.