This menacing species of fish was recently re-discovered in 1938. Scientists believed they have gone extinct along with the dinosaurs millions of years ago, but these creatures re-emerged on the coasts of South Africa, proving they were still pretty much alive and kicking. Just like most of prehistoric animals that can be found today, Coelacanths haven’t changed much and bear great likeness to the fossils that are 350 million years old.
Both New Zealand and Australia are known for its exotic and peculiar creatures, so it comes as no surprise that one of the oldest shark species can be found there. Elephant Sharks use their distinctive snouts to get to shellfish hidden in the sand, that’s basically how they hunt. According to the Nature magazine, they are the slowest-evolving out of all known shark species. Also known as the Australian Ghost Shark, these creatures are about 420 million years old.