Day 2. The setting of the state It is curious to think how life started and how the process of development until nowadays has been. After the formation of the oceans, the first cell drifted aimlessly, boosted by the nature forces, for millions of years. Some cells preferred to be on the depths of the oceans where they took roots, other development jointed legs like scorpions and the others became in fishes. At one point, the entire ocean was covered by plants and some of them left their comfortable in the depths situation to try to survive in the thin atmosphere, becoming, with the years, in shurb and high trees. The same was done by the fishes who learned how to breathe with lungs as good as they had done with gills. This is how amphibians appeared. Some of these amphibians transformed in reptiles, and those little cells who had been drifted amidst the water of the ocean for millions of years had been converted in huge Megalosaurus. But suddenly, in a short period of time, those big reptiles died, maybe due to a climate change but the reason is not clear. However, every cloud has a silver lining, and mammals who were reptiles that instead of oviposit carried the egg inside their body arised after this weird extintion.