They copied manta ray too I watched it on discovery. I think they have either dolphin or whale prototype.
The plan is to build aeroplanes or airships with the mechanics of flight in future technology.
Its amazing forsight technology like this which might one day come to fruitition.
Might want to see there website
http://www.festo.com/cms/en_corp/11369.htm
For bit strangeness in robotics the mutant beach robots from Theo Jansen
Robots are made of plastic tubing lets them roam a beach.
http://www.youtube.com/watch?v=pZ3_JAPpH3U