Japanese researchers have developed a self-propelled remote controlled capsule endoscope that can "swim" through the digestive tract.
Source: http://www.cosmosmagazine.com/news/4436/scientists-create-robot-%E2%80%98mermaid%E2%80%99-endoscope
Asia Argento Aubrey ODay Audrina Patridge Autumn Reeser Avril Lavigne Bali Rodriguez Bar Refaeli
