Velcro = Biomimicry 

One lovely day this summer I went on a picnic in the california hills on Skyline Blvd. It was a perfectly romantic excursion with my beau - fruit, blankets, sunset and all. Except for the fact that i had 200 burrs stuck on my butt. 

The inventor of Velcro had the same experience as I did (except with his dog, and less romantic). Turns out these seemingly innocuous plants have tiny hooks on the ends of each burr in order to hitch a ride on passing creatures, or in my case, to ruin my favorite pair of tights. Anyway, you can see where the inspiration came from.