A makeshift scooter similar to a Segway has babies driving before they can crawl.

It's called the WeeBot, and it was built by researchers from a motorized base, a booster seat and a Nintendo Wii balance board. It lets infants explore their environment by shifting their weight.

"They learn that when you lean, you make things happen," said Carole Dennis, an associate professor of occupational therapy at Ithaca College. "The learning seems to be almost intuitive."

Dennis teamed up with physical therapist Hélène Larin and computer programmer Sharon Stansfield to develop and test the pint-size scooter, which moves slowly and uses sonar to prevent collisions. They hoped giving infants more mobility would create new opportunities for learning.

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