Cave of relics found under Mayan ruins of Chichen Itza (Update)

Archaeologists have discovered a cave filled with hundreds of artifacts beneath the ruins of the Mayan city of Chichen Itza in Mexico, the lead researcher on the project said Monday, calling the find "incredible."

Human hazards hamper vampire bat venom research

Vampire bats could hold the key to new treatments for a range of serious medical problems, but researchers have hit a snag accessing the specimens needed to advance their work.

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