Human Evolution Affected By Hybridization Of Modern Humans And Similar Human Species

Humans evolve from apelike ancestors approximately five million years ago. Most closely related to us are our non-human primates such as African great apes, chimpanzees and gorillas. Scientific studies reveal that more similar traits are being share by human and our non-human primates compared to other animals. As human evolve from our apelike ancestors, changes in our DNA differentiate ourselves from our non-human primate. Even though we evolve from our non-human ancestors and share similar anatomical structures and characteristics, we are unique in our own ways. We possess specific qualities and abilities that differ from other species. There is a substantial gap between non-human primate and fully developed human. Here we will discuss

For many years there has been a debate over where modern humans originated from. The first theory, out of Africa, discusses modern humans evolving in Africa. They migrated out to Eurasia and as the time went on their species evolved independently and developed into distinct species. All other human populations were eventually replaced with no interbreeding involved in the process and Homo sapiens had successfully dominated the rest of the world. On the other hand, the second theory, regional continuity, says that our earliest hominid ancestors had departed Africa and spread into other parts of the world later evolving into modern human beings. In this paper I will discuss the Regional continuity theory and elaborating on the Out of Africa theory. Evidence based on fossils, artifacts, and other crucial components will be discussed. Based on the evidence found I will come to a conclusion as to which theory I think best fits the origins of humans.

Neanderthals and modern humans became one species, through thousands of years of interbreeding. Supporters of this theory state that some modern day Europeans have facial features similar to Neanderthal man. Neanderthal genes may have been inserted into the human gene pool, and Human genes may have been added to the Neanderthals. At this point, Neanderthals and humans may have evolved together at an incredible rate, becoming one race in a relatively short period of time. On the other hand, a disease, a war, or an increase in population causing the natural resources to be inadequate for keeping so many hominids alive might have cut off Neanderthals suddenly from contact with the humans,

The fossils which passed the amino acid tests were called “transitional” elements between the two species.  They represented a part of Europe where the Neanderthals and early humans would have more than likely encountered each other.  The same DNA sequence was found in Neanderthals and early humans, but also in ancient cave bears from Croatia and Austria.  This made the researchers skeptical of their findings and decided to test for mtDNA stands.  When the fossils were further analyzed, the researchers found that the mtDNA embedded in the Neanderthal fossils was of a different strain than that in the early humans, which was of course, different from that of the ancient cave bears.

“Despite intense research efforts, no consensus has been reached about the genetic relationship between early modern humans and archaic human forms such as the Neanderthals” (Serre, 16 March 2004). It is a

Humans began their diaspora from Africa about 70,000 years ago (Newsreel.org, 2014). Since then, we have stretched to a variety of geographic locations in every corner of the world. A biological definition of race advances the idea populations within species have discernible characteristics compared to other populations, thus suggesting the presence of sub-species under Homo sapiens. This has been falsified by many scientists. Dr. Alan R. Templeton says “there are not enough genetic differences between groups of people to say that there are sub-lineages of humans” (Fitzpatrick, 2003). In fact, the genetic differences between individual humans are entirely small about 0.1% (Humanorigins.si.edu, 2014). Human populations have not been geographically barred nor isolated from one

The evolutionary of human living has taken place over millions of years of geological time. It has evolved millions of generations, and billions of individuals. The human evolution is not understandable completely yet. Evolutionary change within a population can take place at different time and different rates, which yield different consequences. This process still taking place in the natural selection and human evolution. One species may be merged to the new species or developed to the next stage of the same species. Homo Habilis, Homo Erectus, Homo Heidelbergensis, and Neanderthals were the close ancestors of modern human, which developed from Australopithecus afarensis.

Discovering the origins and timeline of our species genetics is an essential component of our history. The majority of research into this topic has been relatively recent within the past many years. Scientists are consistently providing new findings and new information for this rising area of interest. Through widespread learning of this material can we collectively make sound judgements based on our own past.

Superficially, anatomically modern humans and Neanderthals have much in common. Current data suggest Neanderthals had language, religion, and shared select genes with Homo-sapiens. The standing question is whether or not these similarities are a product of gene flow. This paper will be an extensive overview of the most substantial evidence that proves or disproves any genetic and anatomical relationships between anatomically modern humans and Neanderthals.

According to physical evidence, and theories, scholars have concluded upon a whole hypothesis. Based on their knowledge and belief, modern humans diverged from Homo sapiens between 200,000 and 150,000 years ago specifically in Africa, that between 125,000 and 60,000 years ago members of Homo sapiens left Africa, and that these

The first Neanderthal fossils found in Europe, a fragmented child’s cranium in Belgium in 1830, and an adult cranium in Gibraltar, were not immediately recognized as a divergent kind of human. Only in 1856 after a partial skeleton was found in a cave in the Neander Valley in Germany it became clear that these fossils belonged to an extinct human and our closest evolutionary relative (Hublin and Pääbo, 2006). Since then, questions about their relationship with modern humans have been fiercely debated between anthropologists. But what attracts most interest from scientists and popular media is the possibility of hybridization between Neanderthals and modern humans if, in other words, they were a genetically different specie or a

Human evolution is the gradual process in which people, or Homo sapiens, originated from apelike ancestors. Scientific evidence, particularly in the form of fossils and secondary remains, show that the physical and behavioral traits shared by all people evolved over a period of approximately six million years. Humans are primates. Both genetic and physical similarities show that humans and the great apes (large apes) of Africa, chimpanzees (including bonobos, or so-called “pygmy chimpanzees”) and gorillas share a common ancestor that lived between 8 and 6 million years ago. The volume of fossils found in Africa suggests that most evolution occurred there and is likely the place of origin for early humans. This brings to fruition the “out of Africa” theory, also called the “single-origin hypothesis.”

There has been a great deal of heated debate for the last few decades about where modern Homo sapiens originated. From the battle grounds, two main theories emerged. One theory, labeled “Out-of-Africa” or “population replacement” explains that all modern Homo sapiens evolved from a common Homo erectus ancestor in Africa 100,000 years ago. The species began to spread and replace all other archaic human-like populations around 35,000 to 89,000 years ago. The rivaling opinion, entitled the “regional continuity” theory or “multiregional evolution” model refutes this theory and states modern humans evolved from various species of Homo erectus who interbred with others that lived in

Humans have existed on Earth for approximately 3.4 million years. The oldest known human ancestor is "Lucy," an Australopithecus. Over this extensive period of time, humans have evolved significantly. Homo Sapiens have grown from 3 to almost 6 feet (average), lost most of the body hair, became leaner and adapted to walking. Humans have come a long way, from Australopithecus to Homo sapiens, from living in trees to living in cities. Slowly, through hundreds of thousands of years, we mutated over and over again, natural selection ensuring that no destructive mutations continue. From the slow evolution, four distinctive species emerged and died out, each giving way to its ' descendant: Homo Habilis, Homo Erectus, Homo Sapiens Neanderthalesis, and Homo sapiens Sapiens.

Human evolution according to research started over 6 million years ago. The outcome of the evolution process is the current human beings. Scientific studies have revealed over the years a remarkable affinity between the chimpanzees/Apes and human beings. Even though this reality is not a definitive prove that human beings evolved from apes, it does show that the human beings are in one way or another related to other primates. Scientists suppose that the humans and the primates shared a common ancestor. The subject of what makes humans what they are and their origin has been the exclusive purpose leading to many scientific studies globally (Coolidge & Wynn, 2011). Studies believe that Africa was the origin of evolution millions of years ago. Fossil remains have been discovered in different parts of Africa as well as other regions of the world. Different hominins have been discovered around the world in the last 1 million years. Thus, the different discoveries have led to comparisons between the various species of hominins to clarify on their similarities as well as differences. This essay seeks to explain whether they were distinctively different species or regional versions of the same species.