Believe it or not a specimen of a two headed bull shark was found off the Gulf of Mexico in April of 2011. This study was led by Michigan State University and appearing in the Journal of Fish Biology. There has been other species of shark found with two heads. (Including: blue sharks and tope sharks.) Michael Wagner, MSU assistant professor of fisheries and wildlife stated proudly "This is certainly one of those interesting and rarely detected phenomena,". Along with his other words, "It's good that we have this documented as part of the world's natural history, but we'd certainly have to find many more before we could draw any conclusions about what caused this." It is so difficult it is to find these oddities is because many of these specimens die fairly quickly due to there rare cases. If you look at the picture below you can tell the shark is just a young pup, hopefully this amazing creature will be able to survive. Do you think these strange oddities are from us polluting the waters?
