An angler opened the mouth of a fish he had caught to remove the lure - and saw a live tree frog staring back at him.
Angus James was stunned when he discovered the amphibian nestled in the throat of the Jungle perch, which he caught in northern Queensland, Australia.
He said: "I was shocked. I thought it might have been grass at first, then it blinked."
Luckily, Angus always carries a camera with him, so was able to grab this shot just before the frog leapt from the fish's mouth and over his shoulder to make its escape.
He sent his photo to Reptiles magazine, which posted the image on its Facebook page, attracting more than 85,000 likes.
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