Evolution of Species - 682 Words

In a world of mass diversity, we are surrounded by endless forms of life, most beautiful, most wonderful. In the words of Charles Darwin, â€Å"It is not the strongest of the species that survives, nor the most intelligent, but the one most responsive to change†. From all the ends of the Earth, there is a wide spectrum of beings from all the six kingdoms of all living things (Plantae, Animalia, Fungi, Protista, Eubacteria, Archaebacteria) that are the product of millions of years of evolution – â€Å"the greatest show on earth† (David Attenborough). The icon of the Arctic, the polar bear is a tribute to the theories of evolution by natural selection that have been created by many scientists, specifically; Charles Darwin, Jean-Baptiste Lamarck, Alfred Russel Wallace, Ernst Haekel and Theodosius Dobzhansky. This report will elaborate on the evolution of the polar bear or Ursus Maritimus over hundreds of thousands of years. The analysis of the DNA of a distinct population of brown bears inhabiting Alaska’s ABC Islands (Admiralty, Baranof and Chichagof) approximately 1,450km south of the nearby polar bear habitat, revealed that the ABC bears were even more closely linked to polar bears genetically than they were to other brown bears. Polar bears are believed to have diverged from a population of brown bears that became isolated during a period of glaciation in the Pleistocene. (DeMaster, Douglas P.; Stirling, Ian (8 May 1981). Ursus Maritimus. Mammalian Species 145 (145): 1–7).Show MoreRelatedTheories on Evolution of Species1068 Words   |  4 PagesWhat is Evolution? It â€Å"is the process by which modern organisms have descended from ancient ancestors† [1]. Many great scientists have developed theories to answer the question, â€Å"Where did life, and human beings, come from?† Two major theories of evolution that still exist, and valid today are Charles Darwin’s the ory, and Lamarck’s theory. These two theories have many differences, but attempt to explain evolution. Charles Robert Darwin, was a naturalist, who proposed one of the most renowned theoriesRead MoreThe Evolution Of Human Species Essay2275 Words   |  10 Pagesgreat progress in discovering all of the different kinds of human species. The discovery of a certain early human species, Australopithecus afarensis was initially credited to the finding of a single individual, AL 288-1, or â€Å"Lucy.† She has helped anthropologists to understand the diet, anatomy, environment, sexual dimorphism, the technology or tools used during their time, and bipedalism of this early hominin species. The evolution of humans is interesting due to the questions we are trying to findRead MoreThe Evolution Of The Human Species950 Words   |  4 PagesThe human species have been able to overcome many obstacles. The key to man’s success is based off its ability to adapt. These instincts helped them to survive the perilous ice age. Homo Sapiens learned how to change and adjust to severe climates . Man’s mobility and adaptability were the two features that kept the early man alive. Many people say, â€Å"The fact that these early hominids survived at all was a miracle†. Within these hospitable conditions, it was their ultimate survival weapon to preserveRead MoreThe Evolution Of Species Extinction818 Words   |  4 Pages most of the species (both flora and fauna) are under serious threat from direct and indirect human activities; while the direct activities such as deforestation leads to species habitat fragmentation and loss, on the other hand modifies climatic conditions coupled with gas emissions. The synergistic impact of these human driven activities questions the survivability of organisms in the morphed climatic environments. At one level fragmented habitats increase intra and inter species competitions,Read MoreThe Theory Of Evolution And The Origin Of Species1688 Words   |  7 PagesThe Theory of Evolution: â€Å"Grievously Hypothetical† *Ro ugh Draft* First Publicized in Charles Darwin’s On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life, The Theory of Evolution has been a widely excepted theory all around the world. According to the Pew Research Center, approximately 60% of all American adults believe in Darwinian evolution (Public s Views on Human Evolution). This is an absurdly large amount of the United States’Read MoreThe Evolution Of The Species Homo Neandertalensis1277 Words   |  6 PagesThe species Homo neandertalensis has been a subject to much debate over history. This species was once thought as one of us. The existent of this species has undergone conversions about their importance and their evolutionary situation. Moreover, the biggest question we ask is what happened to the Neanderthals? Two debates concerning what happened to the Neanderthals have been continuing since the 19th century. One side of the debate believes that they wer e unable to compete with modern humans orRead MoreEvolution And Its Main Contributing Species2441 Words   |  10 PagesIntroduction This paper will explore the theory of evolution and its main contributing species. The Australopithecus is the most primitive common ancestor between humans and apes. Though its contributions to evolution were few, it was still a vital part in evolution being the first ape-like creatures to be known as related to modern humans. Homo sapiens are the first species that share a genus with modern humans. They are slightly more advanced than Australopithecines. Homo erectus are one of theRead MoreEvolution Of A New Species Of Homo Essay1347 Words   |  6 Pagesskeletal features. It was well suited for life on a densely forested isolated island that would have had a limited food source thus contributing to its small size (Lyras et al., 2008). There is much debate on whether these fossils represent a new species of Homo, whether it is a late survivor of the Homo erectus migration out of Africa, or even be classified within a group of hominids that migrated out of Africa pre-Homo erectus . There are several unique identifying features of H. floresiensis thatRead MoreDarwin s Theory Of Evolution Of Species1354 Words   |  6 Pagesdiscussion; the origins of species. Prior to Darwin’s studies the discussion of the origin of man was dominated by creationism, or the belief that we derive from god, who created us all in his image. For the next thirty years, Darwin devoted himself to researching the long standing question â€Å"where did we come from?† Darwin became the first scientist to present a supported argument for evolution, with his crowned publication, â€Å"Origins of Species†, describing how all species derived from a common ancestorRead MoreDarwins Ideas of Evolution of the Species and Nature Creation528 Words   |  2 Pagestime because they dealt with the evolution of the species and the natural and gradual creation of new species of long periods of time through the process of natural selection. Prior to Darwin coming onto the scene, it w as very common to accept the idea of a divine Creator who ordered things. However, Darwin started to talk about the idea of chance and variations that occurred naturally due to survival rates and attrition rates of individuals and groups and species over time. So, in other words, Darwin