In this episode, we're taking a look at a photo that claims to show the biggest megalodon tooth ever found. #realorfake. In this post, we're also looking at a video showing a girl who can twist her leg in ways that will blow your mind. Add to that a picture claiming to show a fish with legs, a bird with green feet and a dog with two noses for a show you don't want to miss. ABOUT MEGALODONS Megalodon meaning "big tooth", from Ancient Greek. It is an extinct species of shark that lived approximately 23 to 2.6 million years ago, during the Cenozoic Era to end of Pliocene. Nobody is exactly sure why Megalodons died out, but we do have a solid record of Megalodon teeth to prove they were real.