Mensa is an organization comprised of people with exceptionally high IQ's, and the Arizona chapter just welcomed its youngest member ever.

Three-year-old Alexis Martin blew her parents away when she began reciting her bedtime stories verbatim at 18 months old.

"We'd be driving around in the car and she'd recite her bedtime story from the night before," father Ian Martin told ABC News, adding: "She didn't just recite them, she recited them exactly."

Over the next several months Alexis memorized every state capital and taught herself Spanish on her parents' iPad.

That's when her parents decided to get her checked out.

Doctors said the toddler's IQ was "off the scale" and they struggled to come up with a definite number. Eventually the settled on 160 -- a score that puts her in the top 2% worldwide. It's also an IQ shared by Albert Einstein and Stephen Hawking.

Source: gawker.com