Roosevelt, The Border Collie With Wheels

Roosevelt's front legs don't work, but his owner Stephanie Fox saw his potential and adopted him anyway. He balances on his extraordinarily strong back legs some of the time, and when he wants to go for a run, they pop on his wheels!

More pictures can be found at the source, Bangor Daily News.

A Video of Roosevelt Learning To Use His Wheels

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From the cart's maker, Eddie's Wheels.