This is Cheetah, the Department of Defense's robot cat. (CNN/DoD)

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'Robot Cheetah' is fastest droid on 4 legs

Updated: Friday, 07 Sep 2012, 9:10 AM EDT
Published : Friday, 07 Sep 2012, 9:02 AM EDT

(CNN) - This is Cheetah, the Department of Defense's robot cat.

The Defense Advanced Research Projects Agency says it is the fastest robot ever.

It has just zipped past it's own speed record in this treadmill test at more than 28 miles an hour. Cheetah's previous record was 18 miles per hour.

DARPA has been working with Boston Dynamics to create robots that can go fast on rough terrain.

Cheetah is going out in the field next year. Hopefully, it doesn't meet a real life cheetah, because that cat can run as fast as 60 miles an hour.

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