The Field Museum's famous Tyrannosaurus rex dinosaur skeleton, Sue, is getting ready for the holidays.
One of the 67-million-year-old dinosaur's twice yearly cleanings will happen Tuesday morning at the Chicago museum.
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That's when geologist Bill Simpson plans to ride a lift around the dinosaur fossil. He'll blow the dust off Sue with vacuum cleaner, then use a feather duster on all of her 200 bones.
The process takes more than an hour. Simpson's the only person permitted to clean the dinosaur.