http://www.cell.com/content/article/fulltext?uid=PIIS0092867405001157

In a story in the current issue of Cell, scientists report that they can control fruit-flies remotely — by shooting lasers at their neurons. Cool enough, but then they tore the heads off a few flies, and found they were still able to stimulate the remaining neurons — and even induce them to fly. That’s right: Remote-controlled headless zombie flies. Do not miss the video of the headless flies in action, which looks like a freaky outtake from The Ring.

http://download.cell.com/supplementarydata/cell/121/1/141/DC1/mmc5.mov