The bizarre discovery was made at Australia's first "body farm" - a facility where medical and forensic scientists can study human decomposition in action. Researchers at the Australian Facility for Taphonomic Experimental Research (AFTER) have been paying attention to corpses over long periods of time, taking snapshots every 30 minutes for more than 17 months. Much to their surprise, the researchers found a "significant" amount of movement - as if the corpse was moving of its own free will.