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The WildCat robot made by Boston Dynamics gallops across a parking lot. There has been speculation in the media that Google hopes to build robots that would perform manufacturing and distribution centre jobs. Image Credit: New York Times

San Francisco: Big Dog, a four-legged robot that can climb muddy hills, and Cheetah, a robot which can outrun the fastest human, are among the robots that now belong to Google Inc.

Another video of a creepy-looking four-footed machine has been watched more than 15 million times since it was posted on Google’s YouTube site five years ago.

The world’s largest Internet search company acquired Boston Dynamics, a privately held company best known for building robots that look as if they belong in a science-fiction movie and which are often co-developed or funded by the US military.

The acquisition is the latest by Google’s secretive robotics division, led by Andy Rubin, the former boss of the company’s Android mobile operating system. Google’s new robotics division has acquired more than a half-dozen other robotics companies.

Google declined to comment and Boston Dynamics did not return requests for comment. A person familiar with the matter confirmed the deal and said that Google will honour Boston Dynamics’ military contracts.

Besides designing animal-like robots, Boston Dynamics also has been working on humanoids as part of a $10.8 million (Dh39.6 million) contract with the US government’s Defence Advanced Research Projects Agency, or DARPA.

Boston Dynamics’ links to the US military has inspired comparisons of its work with the ruthless cyborgs that overthrew humans in the Terminator movies. Founded in 1992 by former Massachusetts Institute of Technology professor Marc Raibert, Boston Dynamics says it is dedicated to “changing your idea of what robots can do.”

Google confirmed the Boston Dynamics purchase on Monday, but declined to reveal any other information, including the sale price.

Rubin, though, evidently views the Waltham, Massachusetts, company’s technology as a key to Google’s robotics plans.

“The future is looking awesome,” Rubin wrote about the acquisition in a message posted on his Twitter account late Friday, after news of the deal leaked out.

Google revealed Rubin is running its new robotics arm earlier this month, shortly after Amazon.com Inc CEO Jeff Bezos used a segment on “60 Minutes” to announce that the Internet’s biggest retailer is developing a fleet of automated drones called “quadricopters” to deliver merchandise to customers’ doorsteps.

That has led to speculation in the media that Google hopes to build robots that would automate manufacturing and distribution centre jobs currently handled by humans. Other possibilities include housekeeping robots or automated caretakers for the elderly.

Some of the other robotics companies acquired by Google have been dabbling in humanoids and other technology that could be used for loading and unloading delivery trucks. One company bought by Google, Bot & Dolly, makes a robotic camera system deployed in the making of a recent science-fiction film, Gravity. Other robotics companies sold to Google this year are Schaft, Industrial Perception, Meka, Redwood Robotics, Autofuss and Holomni.

Google has only said that it considers its robotics division to be a “moonshot.” The Mountain View, California, company applies that description to high-risk projects that have little to do with its main business of Internet search and online advertising. These gambles also typically take years to pay off, to the chagrin of investors who prefer that the company curb its spending on far-flung ventures and focus on its main areas of expertise.

Other Google moonshots still evolving include Internet-connected glasses, autonomous cars and Internet-beaming balloons. All of those were hatched in Google X, a secretive lab overseen by co-founder Sergey Brin. The robotics division is being run separately in a Palo Alto, California, office located a few miles north of Google’s headquarters.

Android, a technology that Google picked up through another acquisition eight years ago, also was once considered a wacky idea before it became a key piece of the company’s strategy for connecting its services on smartphones and tablets. The software, which Google gives away to device makers, is now running on more than one billion gadgets.

Rubin, 50, stepped down as Android’s leader nine months ago, spurring questions about what he might do next for Google.