Climate change isn’t the only science that Republican presidential candidate Rick Perry has doubts about.

The Texas governor told a boy in New Hampshire Thursday that evolution was also questionable.

“You know, it’s a theory that’s out there,” Perry replied. “It’s got some gaps in it. In Texas, we teach both creationism and evolution in our schools. Because I figure you’re smart enough to figure out which one is right.”

“How old do you think the Earth is?” the boy had asked earlier.

“You know what? I don’t have any idea,” Perry said. “I know it’s pretty old. So, it goes back a long, long way. I’m not sure anybody actually knows completely and absolutely how long the Earth is.”

CNN noted that about 35 protesters had confronted Perry regarding Social Security and Medicare at the same event.

Watch this video from ABC News, broadcast Aug. 18, 2011.

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