Dinosaur care (feeding, not so much)

May 12, 2010: This Tyrannosaurus rex's teeth, known as Sue, are squeaky clean thanks to Bill Simpson -- a collections manger of fossil vertebrates at Chicago's Field Museum in Chicago Ill.The skeleton was being cleaned in anticipation of her 10th anniversary at the museum. 

May 12, 2010: This is a close up of Sue's bones prior to her cleaning session with Bill Simpson who is a collections manager of fossil vertebrates at Chicago's Field Museum in Chicago Ill. The skeleton was being cleaned in anticipation of her10th anniversary at the museum.  (AP2010)

May 12, 2010: Bill Simpson, collections manager of fossil vertebrates at Chicago's Field Museum, makes sure to dust every corner of the Tyrannosaurus rex better known as Sue in Chicago Ill. The skeleton was being cleaned in anticipation of her 10th anniversary at the museum.  (AP2010)

May 12. 2010: Tyrannosaurus rex skeleton known as Sue on display at the Chicago's Field Museum, gets her tail cleaned by Bill Simpson, collections manager of fossil vertebrates in Chicago Ill. The skeleton was being cleaned in anticipation of her 10th anniversary at the museum     (AP2010)

May 12, 2010: School children get a close-up look at the Tyrannosaurus rex skeleton known as Sue on display at Chicago's Field Museum in Chicago Ill. The skeleton was being cleaned in anticipation of her 10th anniversary at the museum. (AP2010)

May 12, 2010: Bill Simpson, collections manager of fossil vertebrates at Chicago's Field Museum, dusts the Tyrannosaurus rex skeleton known as Sue on display at museum in Chicago. The skeleton was being cleaned in anticipation of her 10th anniversary at the museum. (AP2010)