Scientists at Georgia Tech have developed a way to use hamsters as a clean source for renewable energy.  (Well, “clean” is up for debate.  Those little rodents can get smelly.)

To harness hamster power, the scientists sewed electricity-generating threads one-fiftieth the width of a human hair into a yellow jacket worn by the hamsters as they ran. A human-sized jacket, capable of powering an iPod, could be ready in as little as three years.

“This can totally be scaled up,” said Zhong Lin ‘ZL’ Wang, who co-authored a paper describing the research in this month’s issue of Nano Letters. “This is just the first step. The idea is that we would harvest energy from any body movement, from walking, breathing, from any kind of vibration.”