Factors in the Evolution to Bipedalism

Evolution of humanity has made tremendous changes in the process of evolution, and now it is a modern human being. Some of the changes that have occurred through evolution are bipedal locomotion, changes in physical features such as eyebrows, and increased brain capacity. Bipedal locomotion is an exercise in the form of 2 feet, which is a factor for separating humans from other forms of apes. It is believed that the first bipedal walker lived in Africa five to eight million years ago.

Napier (1963) argues that a single factor driving bipedal evolution is unlikely. He said: "It seems impossible for any factor to cause such a dramatic change in behavior - the benefits gained from the ability to carry objects - food or other aspects - In addition to - improvement of vision and release of hand is also true Defense and attack Sigmon believes that chimpanzee shows biped locomotion behavior in various situations, and explanation of two element behavior is a single factor , Sigmon believes that it is necessary to use adaptability of human bipedal locomotion behavior Day (1986) emphasizes three great pressures that encouraged the evolution of bipedalism 1. Food 2. Predator's Avoidance 3. Breeding Success Ko (2015) pointed out that there are two questions about the behavior of biped walking: the human part is bipedal 2. The time goes by Why does humanity become bipedal?

This article outlines various theories of biped walking and aims to provide comprehensive answers to human evolution. There are two questions about the behavior of biped locomotion: i) Why is the earliest human part bipedal? And ii) Why will human beings become increasingly biped walking over time, replacing bipedal ancestors? In order to answer these questions, collective research has been conducted on prominent theories in fields such as savanna based theory, posture feeding hypothesis, supply model and so on. Because biological evolution is not a simple causal relationship, there may be multiple answers to the evolution of bipedalism. The posture feeding hypothesis (reaching food / balance) provides an explanation for the earliest human bipedal movement. The grassland-based theory explains how a large bipedal walker who began to settle on the ground more and more biped walked.