A guy in Florida filmed a tree frog on his screen door that had just swallowed a firefly.  The reason you can tell is because the firefly keeps lighting up inside the frog.

Frog Lights up After Firefly Meal || ViralHog

Occurred on June 11, 2018 / Tallahassee, Florida, USA "I was standing at my back door waiting for my dog to come inside when the little tree frog on the door grabbed a firefly. I immediately grabbed my phone and filmed him.