Three fish, Nemo, Dory, and Marlin, were swimming around together when all of a sudden a huge great white shark began to swim towards them. Terrified, they swam the opposite way as fast as they possibly could, but little baby Nemo wasn’t fast enough and ended up as the sharks lunch. Fortunately, Dory was soon to deliver two more babies. As they kept swimming, they found an island in which Dory gave birth, but since they were fish they could not live on the island. Their children kept reproducing and eventually over a few generations they grew legs. Around half a million years later, the species had grown legs and a long tale. They have adapted to land, but still have some of their fish body parts. After another half a million years, they had evolved and got rid of their tails, fins, and gills. Instead, they had large bodies and the species was named Nemosaurus, after their child they had lost to the shark.