Mental commitment robotic baby seals named "Paro" are recharged at robot exhibition Robo Japan 2008 in Yokohama, Friday, Oct. 10, 2008. The 350,000 yen (US$3,480) Paro, a cooing baby harp seal robot fitted with sensors beneath its fur and whiskers, is developed by Japan's Intelligent System Co, to soothe patients in hospitals and nursing homes. (AP Photo/Itsuo Inouye)
A Navy Talon 3B robot approaches a claymore land mine on a sand dune during a training exercise at a training range in Djibouti, Africa, on April 14, 2005. Navy Explosive Ordnance Disposal technicians from Mobile Unit 4 operate the robot from safe locations through the use of monitors and video equipment attached to the robot. (DoD photo by Petty Officer 1st Class Robert R. McRill, U.S. Navy)
Matthew W. Fisher with Hanson Robotics makers of conversational, character robots holds up a synthetic face to show how light and easy it is to move and show human expressions in Boston. MA on May 15th, 2007. (David L. Ryan/Boston Globe)
Vince Martinelli, an account manager at Kiva Systems, right, checks packages on the "pods", or shelves with dummy merchandise as robots run through a demonstration of an inventory check at the company's "demo warehouse" used to show their warehouse automation robots in action. (Josh Reynolds for The Boston Globe)
A student of the Tokyo Institute of Technology displays a prototype security robot "bino3" during a demonstration at a security show in Tokyo on March 3, 2009. The bino3 has four "eyes", which are two wide-angle stereo camera lenses and two tele-photo stereo camera lenses which can follow an subject or intruder smoothly. (AFP PHOTO / Yoshikazu TSUNO)
A two-legged robotic Tyrannosaurus Rex, stands on during the Digital Content Expo 2008 in Tokyo, Japan on October 23, 2008. (Koichi Kamoshida/Getty Images)
Clara Vu, a software architect with Harvest Automation, tests "Mr. Incredible", a second generation robot prototype, in the firm's Groton, MA office August 29, 2008. Mr. Incredible is a container handling system for greenhouses, automatically moving potted plants into a widening grid as they grow and need more space. (Ellen Harasimowicz for The Boston Globe)
A Royal Marine poses for photographers with the Unmanned Vehicle Robot, Testudo, at the launch of the Defence Technology Plan in London February 26, 2009. (REUTERS/Luke MacGregor)
Fair visitors look at the humanoid robotic system "Rollin' Justin" preparing a tea on March 2, 2009 at the world's biggest high-tech fair CeBIT in Hanover, central Germany. (RONNY HARTMANN/AFP/Getty Images)
Thai and U.S. soldiers look at the display of a robot called "Big Dog" during the opening ceremony of the Cobra Gold military exercise at a hotel in Chiang Mai province, northern Thailand, Thursday, Feb. 4, 2009. (AP Photo/Apichart Weerawong)