A three-eyed snake with all eyes fully functioning was found in Australia.
Rangers with the Northern Territory Parks and Wildlife found a three-eyed snake near the town of Darwin in a place called Humpty Doo. The snake, a juvenile, measures about 40cm in length and appears to be a scrub or carpet python. The Northern Territory Parks and Wildlife wrote on its Facebook page that x-rays determined that the snake has a single skull with an additional eye socket and three completely functioning eyes.
The three-eyed snake warns The Dry is coming! Our Rangers found a three-eyed snake on the Arnhem Highway near Humpty…
They believe that the eye developed early in the snake’s stage of development and see it as a natural occurrence rather than a result of environmental factors, such as with the three eyed fish in the Simpsons episode “Two Cars in Every Garage and Three Eyes on Every Fish.”
Three-eyed snakes seem to be rare, more so than two-headed snakes. This snake's eyes are apparently fully functioning. It is unclear what the rangers did with the snake after they found it.