u/Impossible-Mouse8779

In 1992, a photographer named Scott Gardner was working for The Hamilton Spectator when he got a call about a toad with eyes in its mouth in Burlington, Ontario. He assumed it was a prank but went to check it out anyway, and found a real American toad with eyes growing on the inside of its mouth instead of on top of its head.

Gardner's photo went on to be featured in several publications, most notably in evolutionary biologist Richard Dawkins's 1996 book Climbing Mount Improbable. Scientists still aren't entirely certain what caused it, though the BBC has suggested it may have resulted from a parasitic trematode worm infection, the same kind of parasite linked to other amphibian deformities like extra or missing limbs. Only one other similar case, in Minnesota, has ever been documented. Snopes has confirmed the photo is genuine, even though doctored copies of it circulate online too.