Shark Life discovers prehistoric sharks that were a round hundreds of millions of years before dinosaurs. Check out the fearsome ocean giant, megalodon, now that's what you call a mega shark! Brilliantly illustrated in its prehistoric scene, you just might thank your lucky stars that megalodon is no longer around! Then take a look at sharks in our oceans today to discover all about their super senses, and awesome anatomical features that make sharks such clever hunters.