CHICAGO - Chicago's Field Museum is world-famous for its massive collection of animal specimens . And with Halloween fast approaching, researchers are putting some of their creepiest critters into new machines to reveal their secrets.

What we know:

"This is a game changer," said Field Museum scientist Dr. Stephanie Smith, as she showcased their newest research tools — a pair of powerful CT scanners.

A new way to see the unseen

"Your x-rays come out here. They pass through your object, which is right here. And this is the detector, so this is like the photographic plate," Smith added.

And with Halloween on the horizon, there was a special skull to scan on Friday.

"The thing we're going to talk about today is some bat skulls that we're scanning. Very spooky. Seasonably appropriat

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