Alexis Noel has done something many of us will never do — scrape spit off of frog tongues — 15 frogs to be exact.

"It was pretty disgusting," Noel, who is a PhD student at Georgia Tech, told NPR.

But this slimy business was worth it because Noel discovered something incredible. Turns out, frog spit has peculiar physical properties that allow it to transform from a sticky, honeylike substance to a watery form in a matter of milliseconds.

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