It was an interesting coincidence that I came to know about the Bio-Inspirated Engineering at Yahoo! Tech Pulse 2011 just before I watched MI4. The presentation was done by Professor Robert Full who is the “Principle Investigator and Director” of CiBER-IGERT at UC Berkeley. The theme for his presentation was about “How Engineering innovation is possible by the inspiration taken from nature!”. He terms this as “Bio-Inspired Engineering”. It was a very interesting presentation. He has studied the movement of cockroaches a lot and the findings help in building better robots. Had I known about these things before few years (4 or 5 years back) my career choices might have been different (I mean! It was so inspiring!). I would recommend this engineering to all those young-guns who are interested in building robots. During the presentation, he was talking about a reptile, Gecko Lizard. This science behind this lizards toe is the technology behind the MI4 claimed “Magic Glove”. Gecko has amazingly sticky toe that can adhere to any surface (without the use of liquids or surface tension).
The following video will explain what I trying to explain.
Stanford’s StickBot in 2006
Stanford’s StickyBot in 2007
Lyn Verinsky is know as Gecko Woman since she was the first one to try Gecko Glove
For More eager reader (a lengthy video)
Professor Robert Full at TED Talk
For more of this better search in yahoo/bing/google! 
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Hey.. that was awesome…