The “Wasp Hound” is a device that utilizes trained wasps to detect explosives and other odors. Joe Lewis, research entomologist with the USDA Agriculture Research Service and the Wasp Hound’s lead inventor, discusses the device.

Scientists say a species of non-stinging wasps can be trained in only five minutes and are just as sensitive to odors as man’s best friend, which can require up to six months of training at a cost of about $15,000 per dog.
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“There’s a tremendous need for a very flexible and mobile chemical detector,” said U.S. Department of Agriculture entomologist Joe Lewis, who has been studying wasps since the 1960s.