Change Over Time: The Extinction Of Mammals

“It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is most adaptable to change”(Evolution Quotes). So far in the saga that is Earth humanity has been on the winning side of change. Humans have evolved over time from simple hunter gathers to an advanced species of builders and thinkers. Humans have built complex cities, created advanced medicine, and even left their own plant for the moon. Despite all these remarkable achievements humans were not the first species of Homo to expand across the globe. Before Homo sapiens dominated the Earth, their cousins Homo-Neanderthals roamed Europe and Asia hunting big game and thriving. However, between 30,000 and 40,00 years ago the Neanderthal population began to decrease drastically. It is unclear what caused this drastic drop in Neanderthal population, but one leading theory points an evolutionary finger at Homo sapiens. The introduction of Homo sapiens into the Neanderthal environment negatively affected the Neanderthal population size through increased food completion, Homo Sapien violence, and interbreeding

There have been five major mass extinction on earth triggered by a distinguishable event, but in The Sixth Extinction: An Unnatural History, Elizabeth Kolbert writes of the narrative of the sixth extinction caused directly by human impact. The book identifies the effects of human activity on how, over humans history on earth, the natural world has been affected. Every environmental impact stems into three basic groups of global problems to nature: Pollution, Habitat loss and Invasive Species. Kolbert explains that each impact can be traced back to one source, human industrial development. With each impact various types of life in the natural world are affected. Deforestation, urbanization, and sea level rise contribute to habitat loss worldwide. When humans began to travel they also brought invasive species and disease along with them; as boats only became bigger more and more invasive species travel. This reverse engineering of the planet species, brings new species that don’t have any natural predators, thus having an easier time driving native species out to endangerment or extinction. The different outcomes that come from human pollution is separated throughout the book, but the idea remains constant; with the development of human culture, pollution has drastically impacted a vast extent of species habitats and their environment.

In the two essays being discussed we learn that science has a vast range of definitions. Science is the effort to understand (or to understand better), the history of the natural world and how the natural world works with observable physical evidence as the base of understanding. Science is about how the hypothesis is developed and how well it is defended.

The Sixth Extinction: An Unnatural History by Elizabeth Kolbert is a nonfiction book about the mass extinction happening around us. Kolbert proclaims that we are currently living in the middle of a sixth, man made extinction. During the last half a billion years the Earth has experienced multiple mass extinctions, where accelerated rates of change altered and contracted the diversity of life on Earth. While the past five extinctions have been caused by nature, this time, however, the sixth extinction revolves around us. In this book, Elizabeth Kolbert describes the absurd ways humans have transformed life on earth, by going on expeditions, interviewing scientists, and explaining the science and history behind animals going extinct as well as the concept of

The question of the coexistence and the potential interaction between the last Neanderthal and the earliest intrusive populations of anatomically modern humans in Europe has been a topic of debate. The extinction of the Neanderthals occurred during the latter part of the last glaciation which was characterized by a rapidly changing climate, cold conditions and corresponding vegetation and faunal turnover. However, it coincided with the expansion of modern humans out of Africa during the Late Pleistocene. Thus, it has been an ongoing debate on whether the extinction of the Neanderthals was due to competition with anatomically modern humans or due to climate change. It is argued that the inability for the Neanderthals to adapt to climate

The surviving species with the right amount of traits take advantage of these niches and live in them. This is called adaptive radiation. http://evolution.berkeley.edu/evolibrary/news/120901_afterextinction

In order to test their hypothesis, they created a statistical test. The statistical test used data of the occurrences of the fossils of extinct Pleistocene mammals in layers of rock and terminal Pleistocene radiocarbon dates for a given taxon, or taxon dates. These dates were all rated as reliable or of intermediate reliability. They found a pattern in the data specific to North American Pleistocene mammals: the last

The topic that I plan to write about is how the distinction between "human" and "animal" has blurred and altered. This topic reveals the control and domination that are innate to animal and human which obscures the role of characters. Animals share traits with humans in genetics, affection, and behaviors that all make them similar to each other. The narrative text I plan to use as my focus is "The Veldt" where kids addict to the fantasy world and kill their biological parent to save and permanently live with lions. The intimate relationship between kids and lions has overthrown the conventional human role where animal replaces the existence of the parent and eats them in their house. From the text, it reveals the manipulation from lions to

Natural selection was a Natural selection is the micro evolutionary process where certain species develop certain traits that help them adapt and survive

The investigation of the overkill hypothesis in regards to the climate changes that are associated with the extinction of megafauna shows climatic changes had no through effect to forcing the overkill of these large fauna species in North America but rather the geography of human evolution and expansion had the most severity on species life and. The pattern of extinctions corresponds closely with the increasing appearance of humans migrating from the glacial Canada through the ice free corridor. As pointed in a scientific report conducted by Dr Grayson, in the Journal of Anthropology, “High extinction despite a relatively stable climate is most striking in South America, forming a strong contrast to sub Saharan Africa where extinction was

How has biodiversity on earth changed over time?Many scientists may ask themselves this question, but they all have different responses.In the lab we did in class I got to decide my answer for this question and I believe that biodiversity has increased over time.To get my evidence I looked at a data table with all of the biological classification schemes.This is my argument because after I looked at the data table I came up with the conclusion that biodiversity has increased.

Have you heard that many animals today are going extinct because of people polluting the water, air Also because they are hunting animals for their fur, skins, and horns. But with your hearing the research I have conducted, I think you can also help stop animal extinction.I wanted to research this because I like animals and I want to stop animal extinction. I have been reading and learning about animals for my whole life . when I figured out that animal extinction meant animals are going to not be existing anymore, I knew I had to research about animal extinction. Have you asked yourself? What causes animal extinction? Well, what causes animal extinction is deforestation, greenhouse gases, forest fires, and pollution. “By burning fossil fuels, we are making hotter temperatures, melting polar glaciers Globally, power generation is responsible for about 23 billion tonnes of CO2 emissions per year” “Greenhouses gases, such as carbon dioxide, trap heat in the atmosphere and regulate our climate. These gases exist naturally, but humans adding more carbon dioxide by burning fossil fuels for energy (coal, oil, and natural gas) and by clearing forests.Greenhouse gases act like a blanket. The thicker the blanket, the warmer our planet becomes. At the same time, the Earth’s oceans are also absorbing some of this extra carbon dioxide, making them more acidic and less hospitable to sea life

Have you ever wondered “why” dinosaurs went extinct? Here is a theory of why the dinosaurs don't exist in today's world. A long time ago the only thing that existed was animals called ‘dinosaurs” they were the only living things on planet earth. These dinosaurs were unique because they could talk, but nobody could understand them, it was like their secret “code” language. These dinosaurs lived a happy and healthy life until the small explosion changed the life of these dinosaures. Just a few miles away from earth a fight started between two planets called ‘Sun’ and “Moon’. The argument was about who would shine more light on earth. The argument went to the point where they started to shoot fireballs at the moon and then the moon started to throw rocks at the sun. During the fight one the fireballs misses it's target (moon) and made its was towards the earth but “apparently” there was space ship traveling the universe full of aliens and the fireball came in its path which made space ship crashed on Earth including the huge fireball. The fireball was so powerful that it almost brought everything that came in its path such as rocks, asteroids and much more. When the spaceship crashed on planet Earth, creating a loud bang, making the dinosaurs frighten in terror. Then the biggest problem in Earth’s history step out of the broken space ship. There were 5 weird aliens that step out of the space ship. They had very big heads that looked like blue almonds. When the aliens step out

Biodiversity loss can lead to extinction, and hurt human life. It is our responsibility to take care of the environment. We bring in machines that harm the environment and destroy animal life. We need to limit ourselves on how much land and resources we consume. There are major issues that are causing species to become extinct and hurt our way of life and other animals do to the change in food chain.

Biodiversity is the grand diversity of all life on Earth and the interconnections that support these forms of life. This astonishing diversity supports the human existence by providing numerous priceless resources such as food, fuel, and medicine. Many of these resources can not be duplicated by the human race. For these reasons it is obvious that the environment and the biodiversity that it supports are detrimental to human survival. There is one major problem that is growing each day, and that is the amount of biodiversity, along with the services and benefits that is provides is diminishing. The study of biodiversity becomes increasingly important in order to gain knowledge on how to prevent this catastrophe. The