Snopes says it’s “Mostly true” in that they don’t know the origins of the color photo but the black and white one is authentic: https://www.snopes.com/fact-check/frog-eyes-inside-mouth/
Quoting the article:
Most anurans retract and close their eyes repeatedly during swallowing. Eye retraction may aid swallowing by helping to push food back toward the esophagus.
That's about normal frogs, not the mutated ones. They use their eye balls to push food down their throats.
What. the. fuck. What a terrible day to be literate.
