"Within a few years, electronically controlled insects carrying mini-cameras or other sensory devices could be used for a variety of sensitive missions - like crawling through earthquake rubble to search for victims, or slipping under doors on espionage surveillance."-- Robot Gossip, via WMMNA.
"Moody reached into the jar, caught one of the spiders and held it in the palm of his hand so they could all see it. Then he pointed his wand at it, and muttered, 'Imperio!' The spider leapt from Moodyâ€™s hand on a fine thread of silk, and began to swing backwards and forwards as though on a trapeze. It stretched out its legs rigidly, then did a back flip, breaking the thread and landing on the desk, where it began to cartwheel in circles. Moody jerked his wand, and the spider rose onto two of its hind legs and went into what was unmistakably a tap dance."-- Harry Potter and the Goblet of Fire, J. K. Rowling.