Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Evolution of human beings
Evolution of human beings
Evolution of human beings
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Evolution of human beings
Human evolution
Introduction
Human evolution is the growth and adaptions of humans over the six million years we have been on this earth. The reason we have adapted is to increase the chance of our survival. There is a lot of scientific evidence that supports this concept of evolution such as human fossils, natural selection, genetic evidence and major developments in humans over the six million years such as bipedalism. This report will explain the concept of human evolution, give strong scientific evidence to support the concept and give examples for this theory.
Explain the scientific concept
The theory of human evolution is base of the scientific evidence shows that humans have dramatically adapted over the time we’ve been around. Human evolution has been so successful because of our ability to rapidly adapt to the difficulties we encounter in order to survive. Palaeoanthropology, the study of human evolution is the most important science discussion the world has ever known because it is the key to how and why our bodies have morphed from the Ardipithecus stage to what we are now (homo sapiens). The genetic code of an organism can be changed when it is passed on to offspring. Mutations can occur when this process happens much like the hammer head shark’s head. These mutations can either thrive and create a better organism or destroy its occupant.
Discuss evidence for theory
There is loads of evidence that supports the theory that explains a lot about how we are the way we are. Human fossils have shown that lots of parts of our body have adapted. The main ones being our skulls and spines. Our skulls have changed due to discovery of fire and cooked food which meant we no longer need large strong jaws so our jaws got smaller. A...
... middle of paper ...
... a major advantage that started off as a mutation in their DNA. (Mutations)
Interesting facts
- Bipedalism is the aptitude to walk on two feet. It was a huge development in humans as it allowed us to have two free hands which is believed to be what led to the making of tools. This turned into a spiral of new advantages in our evolution and is definitely one of the reasons Homo sapiens have survived so successfully.
- Humans once were facing extinction due to an environmental disaster. Human population decreased from an estimated two million to around three thousand.
- Humans are still evolving according to scientist Homo sapiens and nowhere near finishing our evolution process. In fact it is believed that human brains are shrinking due to the lack of need for extra mass because human brains are becoming more efficient.
Conclusion
References
In the book, Your Inner Fish, by Neil Shubin he presents the notion of evolution and how we can trace parts that make up the human body back to jellyfish, worms, and even fish. The book not only discusses how we arose to be what we are today, but also the implications our ancestors had on our current body plan. In this essay, I will demonstrate that I have digested the entirety of Shubin’s book by convincing you (dear reader) that everything in our bodies is based on simple changes to already existing systems. To make this case, I will use the evidence of limb development in a vast array of organisms, the four arches found in the embryological stage of development, the structures inside our noses, and how our ears have come about all due to modifications.
The evolution of man is constantly in question. While we are reasonably sure that modern humans and primates are both related to the same common ancestor, there is constant debate over what initially caused the two species to split into early hominids and apes. According to some, our longest and most popular theory on the division of man and ape is profoundly wrong. However, those same individuals usually offer an equally controversial theory as a substitute, one that is almost impossible to scientifically test or prove. Both the Savanna Theory and the Aquatic Ape Theory offer solutions to how and why humans evolved into bipedal toolmakers. But with enough questioning, each loses its accountability to rhetorical science.
Human characteristics have evolved all throughout history and have been manipulated on a global scale through the use of science and technology. Genetic modification is one such process in which contemporary biotechnology techniques are employed to develop specific human characteristics. Despite this, there are a countless number of negative issues related with genetic modification including discrimination, ethical issues and corruption. Hence, genetic modification should not be used to enhance human characteristics.
Bipedalism is a unique attribute of hominids and is pivotal in human evolution. There exist several Hypotheses of Bipedalism. Four hypotheses that are explored are Locomotion Efficiency (Long Distance Travel), Thermoregulation (Cooling), Freeing the Hands, and Visual Surveillance. A summary of each hypotheses’ main points and applied relevancy of each, postulating the locomotion theory as the best of the four hypothesizes.
The evolution of the human species has significantly changed during the course of evolution to what is now the modern day Homo sapiens. Some of the changes that have occurred through the evolution are bipedalism, changes in body features such as brow ridges, and an increase in brain capacity.
Among the great debate of religion lies the question in the theory of evolution. Evolution is not questionable, it is fact, but are we still evolving? The answer lies within the last few thousand years. Henry Harpending from the University of Utah says, "We aren't the same as people even 1,000 or 2,000 years ago." Due to the rapid evolution in technology, it is easy to see humans are evolving socially, but humans are mostly experiencing changes within their genetic makeup. Using limited data, Professor Harpending and seven other universities found over 3.9 million point mutations. The fact is, 7% of the human genes are rapidly evolving. On average, seventy new mutations appear per generation. The mutations are fueling the rapid evolution in
We as humans are alway changing and growing this idea however is the same for all living things. This idea was develop by the theory of evolution by Charles Darwin. This theory provide insight to how evolution has changed species over time. Which, through this article I will be addressing the mechanisms of evolution as well as how Charles Darwin helps to provide insight to how the mechanisms of evolution works.
What is evolution and how does it work? Evolution is the theory of how one form of life changes into another form. Evolution also is the change of a population’s inherited traits from generation to generation. Evolution helps to explain why an animal, human, and plant looks the way it does and acts the way it does; it gives an explanation of the history of life. Genes come in many varieties and the evolution helps to make it happen. Mutation, natural selection, genetic drift, and gene flow: the four forces that make the evolution work.
“The scientific study of how humans developed did not begin until the 1800s in Europe. Until that time, people relied on religious explanations of how humans came into existence. Starting in the 1500s a scientific revolution began to sweep Europe. Thinkers started using scientific methods and experiments to try to better understand the world and the creatures living in it. Eventually these methods were turned to the question of human origins” (The Nature Of Human Origins, 1). Earth made it possible for species to change over time because Ancient Earth provides ability to plenty of time.The Homo Sapien a is very complex creature. The species started off very simple by living in caves and surviving with little food and then later evolved into a species that were able to do many more complex things. The first species was Sahelanthropus tchadensis They were one of the most simple humans in that time period and on. They had very small skulls compared to Homo Sapiens today and their motor skills were just the same. We have evolved and changed for the better both mentally and physically. The Evolution of Homo Sapiens started off simple, such as the Neanderthals, and now we are the most advanced species to ever walk the planet so far.
Biological evolution is the change in the inherited and genetic characteristics of a species. Much of what makes us human is our physical appearance and biological adaptations. Human ancestry originates in primates and over time, we have physically evolved a great deal in order to become the modern humans that we are today. Humans have larger brain sizes, longer legs, and are habitually bipedal all of which biologically separate humans from other animals and create the human identity.
The evolutionary theory is the concept that species evolve over time through the mechanism of natural selection of survival and reproduction. Natural selection means acting on the assumption that various living organisms were produced by genetic diversity and mutation. The evolution theory may also be referred to as the philosophizing science. This theory states that all phenomena are derived from natural causes and can be explained by scientific laws without reference to a plan or purpose.
Evolution is the complexity of processes by which living organisms established on earth and have been expanded and modified through theorized changes in form and function. Human evolution is the biological and cultural development of the species Homo sapiens sapiens, or human beings. Humans evolved from apes because of their similarities. This can be shown in the evidence that humans had a decrease in the size of the face and teeth that evolved. Early humans are classified in ten different types of families.
Evolution is a systematic mechanism through which the modern day has evolved from his ancestors. The Darwin’s Theory of Evolution is based on the premise that we all
Without evolution, and the constant ever changing environment, the complexity of living organisms would not be as it is. Evolution is defined as a process that results in heritable changes in a population spread over many generations (8).Scientists believe in the theory of evolution. This belief is based on scientific evidence that corroborates the theory of evolution. In Figure 1 the pictures of the skulls depict the sequence of the evolution of Homo-sapiens. As the figure shows, man has evolved from our common ancestor that is shared by homo-sapiens. The change of diet of homo-sapiens over time has thought to contribute to the change in jaw structure and overall skull shape.