December 9, 2013
Since the term human in nonscientific and it is open to interpretation, many people have different views on it. We each individually define a human in a different manner. Some people might view modern humans as a species that is superior to any other; others might view humans as not even belonging to the animal kingdom! In reality, we are the cousins of the apes! Fossil records have shown the slow evolution of apes to humans. Humans to me are as much a part of the animal kingdom as a cat is. We may have some distinguished traits that other species might not have such as walking upright, our well-developed brains, and ability of speech but we are still primates. To me, a human is defined as many things. We are quite different than other primate. We were once considered as being an incredibly unique animal but recent studies have shown that we share common traits with other primates. One very distinct trait that modern humans have is bipedalism. Humans are able to walk very long distances walking upright. It is our main locomotion. Bipedalism has many advantages. It frees our fore limbs so we can do other tasks as we are walking. It also is an energy saver. It doesn’t require as much energy to walk as if we walked with all four limbs. Bipedalism also helps thermoregulation. It dramatically reduces direct sun exposure and reduces heat loss. Another physical trait that humans have is well-developed brains. Modern humans cranial capacity is about 1350 cc to 1400 cc. We are able to solve problems, fulfill tasks and easily learn skills. Because of our large complex brains, it requires a slower development. We need a longer period for learning and for practicing. A long juvenile period made humans more dependent on parents for a longer amount of time but it favors humans in the long run; it delays reproduction, which creates a longer life span. Modern humans are not only...
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