http://www.gizmag.com/insect-cyborgs/20596/

http://www.gizmag.com/insect-cyborgs/20596/picture/148752/
From the article:

Insects have served as the inspiration for a number of Micro Air Vehicles (MAVs) that could be deployed to monitor hazardous situations without putting humans in harm’s way. Now researchers at the University of Michigan College of Engineering are proposing using actual live insects enhanced with electronic sensors to achieve the same result. The insect cyborgs would use biological energy harvested from their body heat or movements to potentially power small sensors implanted on their bodies in order to gather vital information from hazardous environments.