“This is certainly one of those interesting and rarely detected phenomena,” said Michael Wagner, the university’s assistant professor of fisheries and wildlife.

“It’s good that we have this documented as part of the world’s natural history.”

Wagner and his team used an MRI machine to discover that the two headed shark also had two separate stomachs and hearts as well as heads with the same body that merges into one tail.

The strange discovery was made by a fisherman in the Gulf of Mexico who caught a female bull shark and opened found the abnormal twin headed shark after cutting into its uterus.

It was taken first to the Florida Keys Community Centre before being taken on to the Michigan State University for further tests to be run.

“You’ll see many more cases of two-headed lizards and snakes,” said Prof Wagner. “That’s because those organisms are often bred in captivity, and the breeders are more likely to observe the anomalies.”

It is a theory of Professor Wagner’s that while other two headed sharks may have been born before they would have quickly died. 

Still, as amazing this discovery is from a biological perspective or whatever it pales into meaningless when you actually look at the photo above and realise just how disgusting nature is.