CHICAGO (WLS) -- Brookfield Zoo Chicago revealed some animal X-rays days ahead of Halloween.

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The zoo's veterinary team uses scans to monitor animal health.

In the spooky spirit for Halloween, the zoo shared skeletal snapshots of some of the zoo's wildest residents.

Puerto Rican crested toad

Native only to Puerto Rico, the zoo says the Puerto Rican crested toad is a rare amphibian. Adding that the head has a distinctive bony "crest" above the eyes.

Tamandua

The zoo said instead of teeth, the tamandua anteaters use long, sticky tongues coated in thick saliva to catch insects.

Toco toucan

Famous for its oversized bills, the toco toucan's beak can reach up to eight inches, about one-third of its body length, according to Brookfi

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