Cro Magnon : Animals From The Beginning

Despite the evolutionary many benefits and gradient expenses with human intelligence, increased brain size did not occur because it was able to expand by itself. Environmental factors are what led to the evolutionary changes. A fundamental principle of evolutionary theory is that evolution is the balanced outcome between costs and benefits. Since the price of maintaining a large brain is greater, it is inherently improbably that expansion of the brain will evolve without a selection factor being adequate to overcome the high expenses. (Dunbar, 2007) There has been a strong correlation between increased temperatures in the global climate and increased endocranial volume. Over the past three million years, the average global temperature has been steadily increasing, as well as the braincase of human ancestors. Strong evidence of this is seen between the period approximately 200,000 to 800,000 years ago where the Earth’s climate experienced the greatest temperature fluctuations which

The most recent ancestor to the modern human, Homo neanderthalensis existed between 300,000 and 35,000 years ago. Originating in Africa, ancestors of the early Neanderthals migrated northwards almost 800,000 years ago. These migrants colonized much of the Old World with the majority based in Europe and small groups scattered throughout the Middle East and Asia. Historically, the Neanderthals were among the most resiliant creatures to exist on Earth. As a population, they thrived during the European ice age 40,000 years ago. This ice age enveloped the majority of Northern and Central Europe and due to their physique were the Neanderthals were able to surive. Physcially, the Neanderthals were larger and more muscular than today’s human

It's widely agreed by scientists that Neanderthals and Homo sapiens (modern man) are different species. However, it's thought that 1.5 - 2.1% of DNA from anyone born outside of Africa is Neanderthal which means that they co-existed and interbred with our Homo sapien ancestors approximately 35,000 years ago. Researchers say, the only human ancestors who didn't interbreed with Neanderthals were sub-Saharan Africans. Neanderthals typically lived in Europe and Asia up until approximately 33,000 BC when they are said to have become extinct. They lived during the Ice Age and can be considered as early cave men who are likely to have been covered in hair and had an ape like appearance very similar to the conventional perception of Bigfoot. Their eyes and brains were larger than those of Homo sapiens but they were sophisticated enough to carry tools, make fire and bury their dead. One scientific explanation as to why the Neanderthals died out is climate change, More likely, they were unable to compete with the better adapted early humans who either killed them, took over their land or interbred with them and they were absorbed into our

The history of life on earth goes back to millions of years. Many species and creatures evolved and changed through time, leading up to what we know today as, modern man. One of the creatures most similar to modern man is the Neanderthals; they are sometimes referred to as “early modern humans.”

Cro-Magnons did not appear in Europe until about 40,000 years ago (Shreeve, 150). The Neanderthals seem to have been geographically separated from other humans for a long time, in a different environment. These factors gave the Neanderthals a chance to evolve separately, maybe enough to become a species (Shreeve, 156). Even when the two species met and coexisted for thousands of years, they continued to have very distinct morphological traits. If they were the same species, gene flow would have blurred the differences, but little evidence of this is found.

The earliest stage of human evolution came to be found in Africa. Human history began about 7 million years ago and came from a descendant of the gorilla line. These early humans known as Homo erectus dispersed to different continents and started colonizations. Since every human being came from the same background it supports diamond’s theory that different human intellectuals wasn’t the cause of different advancements. As the inhabitants of Africa started to create new tools Europe and Asia began to follow this trend. As of some 400,000 years ago, Cro-Magnons in Europe developed modern skeletons, superior weapons, and other advanced cultural traits, a sign human evolution.

This in turn allowed them to consider the context of differing abilities to cope with fluctuating resources, different variables, and overall paths in brain development between Neanderthals and anatomically modern humans (AMHs). Although Neanderthals did share similar brain sizes comparable to anatomically modern humans (AMHs), nevertheless Neanderthals brain cases were elongated and not globular as in Homo Sapiens implying that anatomically modern humans (AMHs) and Neanderthals reached fairly large brain sizes along dissimilar evolutionary paths. In their underlying research, they hypothesize that similarly sized brains of both Neanderthals and anatomically modern humans (AMHs) were ostensibly organized differently for two

According to Diamond, Human ancestors moved to Eurasia around 1 to 2 million years ago and after human fossils began to resemble modern Homo sapiens and archaeologists called that period the Great Leap Forward. According to “Human Evolution and the Great Leap Forward - By Advocate De Waal Lubbe,” Scientists have estimated that humans branched off from their common ancestor, with chimpanzees, about 5-7 million years ago. Several species and subspecies of Homo evolved and are now extinct. These include Homo erectus, which inhabited Asia, and Homo Sapiens Neanderthalensis, which inhabited Europe. Archaic Homo sapiens evolved between 400,000 and 250,000 years ago.

Neanderthals had stocky build (more muscle mass), they stood shorter than Homo-sapiens (5.4-5.5ft adult male), had a more prominent brow ridge, large eye sockets and teeth, and had a flatter but overall larger brain cavity than anatomically modern humans (wsws). Homo-sapiens are generally taller than Neanderthals (5.6ft Adult Male-Global Avg), have smaller brain cavities—housing more complex brains, have a rounded brow ridge and overall flatter face than Neanderthals (icr find a better source), Because of the similarities in appearance between Neanderthals and Homo-sapiens, many people mistakenly refer to Neanderthals as out ancestor. This however is very untrue. As previously state, Neanderthals co-existed with anatomically modern humans. It would be more accurate to refer to them as a cousin species to our own. They’re similar features stem from the fact they, like anatomically modern humans, belong in the group of hominid species. (talk

She argues that brain development helped humans achieve getting this far in evolution, stating that they are able to have complex reasoning due to the size increase (2). Although both can agree that brain development was a piece

Decoding Neanderthals is an analysis of the Neanderthal genome shows that modern humans and Neanderthals had interbred some 60,000 years ago. It all started with our ancestors making their way from Africa to Europe. The ones who were in Africa evolved into humans and the ones who went to Europe developed into Neanderthals. They were also known as “Cavemen”. People saw them as some type of weird specie but the more you learn about them the more you start to realize that they are a lot like us humans.

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

Craniology and cranial capacity, were the first methods used as a measure of brain size in relation to intelligence, with research by Galton, showing a 5% increase for students who graduated university with honours (Cairo,

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.