Environment Essay: Misconceptions Of Evolution

Misconceptions of Evolution Three planets from the sun, over 4 billion years old, with 11 eras of dated history, the Earth has gone through many changes. Life started about 3.8 billion years ago as tiny bacteria. Homo sapiens have been on Earth about 200,000 years ago. This is 0.004% of this planet’s history. Every species had to adapt, evolve, and change to survive the world. Throughout history you can see evolution and how similar every animal is to each other. Some believe that there is no such thing as evolution or adaptation. However, there is so much proof that shows this is not true. Evolution can be seen in the anatomy of animals today. Completely distinct species share alike features. For example, humans and birds have the exact same bones in the forearm area. This shows that two different species came from a common ancestor. It is highly unlikely that each species evolved this way independently.

Already there were evolved organisms spread out across the vast land. During the breakup of Pangaea, resulted two supercontinents, Laurasia and Gondwana. These two split, moved, and so on. This resulted in many changes of environment, which caused animals to adapt and evolve to the isolated environment of islands. For example, Australia had been isolated by water resulting in the mammals not having any competition from the outside world. Due to this, most of the mammal species here carry their young in their pouch, while in other places they feed their young through a placenta. In the Galapagos, there are many distinct species on the islands that are only unique to their island. Comparing tortoises from each island you can see a slightly different change best suitable for their island. This shows the process of how these animals on different islands evolved. They were able to adapt in isolation, without any interruption from other species, so they are best suited for that