Baby Steps Learning To Walk The Hominid Way Analysis

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I read the story whose title is “Baby steps: Learning to Walk, The Hominid Way”. This story talks about how and when walking happens to our ancestors. It also made a discussion about the reason of the occurrence of walking and the connection between walking and natural selection and the connection between walking and body change. In a word, this story analyzed one of the most important characteristics of human, walking, which plays a big role in the development of human evolution.
According to the description of this story, we can know that walking with two legs is a rare phenomenon among living things. Four legs are easier and faster to cover the ground. No exception for our ancestors; they also use four legs to move in trees or to move around on the ground for a super long period. Walking happens to our ancestors randomly but they did not become upright walkers quickly; there was a
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However, there are something take place in their body that induces them to walk on two legs. Here we should connect the formation of walking to the concept of natural selection. Natural connection is defined as the differential survival and reproduction of individuals because of differences in phenotype. One important thing is that there is no intentional choice in natural selection. In other words, natural selection is a mechanical process without foresight. This explains what the story tells us: novelties happen randomly. Our ancestors did not go to the ground to decide if it is better to stand and move around on the ground, they did it just because it is the thing that came naturally first. Selection is one of the processes of microevolution, which is the change in allele frequencies that takes place within a population. In the story, it talks about a kind of “walking” tool kit. If it shown up a lot in our ancestors’ fossil bones, it means this kind of allele frequency is high and walking is a natural
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