Ancient Human Evolution

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It is believed that humans have evolved from a species of primates beginning million and millions of years ago. At the beginning of time, human's believed ancestors lived in trees and fed off of those trees and other shrubs. However, there is one point in time that human's ancestors went from their home in the trees and started walking on the ground. When human's early ancestors set foot on the ground they began to evolve. Human's ancestors teeth began to evolve so they were able to chew more than leaves and shrubs, but also grass, insects, animals, roots, and any other items that are harder to chew. They also began to walk on two legs during this time. The change from a tree, shrub diet to a grass, omnivorous diet had a large impact…show more content…
According to John Hopkins and his research team this change "took place four-hundred thousand years earlier than researchers had previously thought, and this change showed how quickly evolution was taking place." Most scientists also say that the change took place when ancient humans began to spend more time on the ground during the Pliocene era which was about 2.6 to 5.3 million years ago. To prove human's diets changed, scientists studied ancient human teeth and performed an analysis on how old they were and how long ago they began. Scientist Levin said that "this shift led to humans ability to survive and expand our horizons." Researchers were also able to discover that "form does not proceed function" because of research found on dietary shift coming before teeth appropriate to consume the grass. Other researchers found teeth in Ethiopia regions and examined them to see what type of foods they were used to eat. The research team found that early humans as well of a species of baboons were eating grass- like foods for 3.4 million years ago. It is important human's early ancestors made this adaption because it led to the survival and successfulness of the human

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