angled towards knees. This gave her a Human Edge and created stability for walking. Darwin’s idea of Natural selection also favoured evolution of bipeds. Bipedalism allowed our ancestors a better view over the grass which helped them to avoid predators. This created selection pressures which lead to selection of members that could walk upright better and farther. Bipedalsim also allowed them to carry food objects over a large distance because their arms were free to carry objects. Again selection pressure selected for individuals that were better at carrying meat and other food objects. According to Wheeler (1991), surface area of the body exposed to the sun was also reduced which helped to cool the body. All these events lead to natural selection of bipedalism.
Hardy-Weinberg Principle provides a theoretical baseline for measuring evolutionary change. According to Hardy-Weinberg law “the relative frequencies of alleles of various genes in a large, randomly mating, non-evolving population tend to remain constant generation after generation in the absence of evolutionary force.” According to this generalisation, if a population is large, its individuals have random mating, each parent produces roughly equal number of gametes, these gametes combine at random and undergo no evolutionary change, then the gene or allele frequency of different genes remains constant or unchanged and genetic equilibrium of genes is preserved through generations.