East Africa's Great Rift Valley is so important for paleoanthropological research because the earliest sites that hominids inhibited are thought to be these exact sites. Also, this rift system changed many parts of the climate. Scientists study this area to figure out how natural systems mix between each other. Because of all the climate and environmental changes during these rifts, it is believed that the early human line of primates developed their ability to walk on two feet in this area, which started the natural selection into us and how we are standing today.

The bipedal movement is another way to say standing upright, on two feet, hence bi-ped.The evolutionary benefits of bipedalism begin with being higher off the ground which gives