In today’s Escape: Here’s what your cat is saying, why tea drinkers live longer, the real science of brain rot.

But first: This diamond’s fate puzzled historians for centuries.

MANUEL COHEN/AURIMAGES

Known simply as “the Blue,” the world’s biggest blue diamond first vanished in a jewel heist during the turmoil of revolutionary Paris in 1792. Since then, it has resurfaced and disappeared several times around Europe and across the Atlantic over two centuries. But thanks to historians and scientists, the hunt may finally be over.

More stories:
— Are diamonds really ‘forever’?
— These art museums were the sites of dramatic heists

PHOTOGRAPH BY ROBERT CLARK

PHOTOGRAPH BY DAVID GUTTENFELDER, NAT GEO IMAGE COLLECTION  

Like the scorpion pictured above, there are many animals that can appear to glow under ultraviolet (UV) light thanks to a phenomenon called photoluminescence. What other animals can "glow"?

A. Flying squirrels
B. Hawksbill sea turtles
C. Opossums
D. All of the above

BEFORE YOU GO: Dogs. Bedbugs. Corn. They all have this one thing in common.

Today’s newsletter was edited and curated by Jennifer Baik and produced by Alisher Egamov. Thanks for reading! Did someone forward this to you? Sign up for all our newsletters here.