Check out this series of photos from the St. Augustine Alligator Farm Zoological Park. Mr. Bones, the alligator, had to be fully restrained to keep him from moving in the scanner.
Maggie Koerth-Baker is the science editor at BoingBoing.net. She writes a monthly column for The New York Times Magazine and is the author of Before the Lights Go Out, a book about electricity, infrastructure, and the future of energy. You can find Maggie on Twitter and Facebook.