Extinction

In the novel “The Sixth Extinction” by Elizabeth Kolbert, humans are destroying the world by burning fossil fuels, polluting oceans, rivers, lakes, and the air but, is it really the individuals human 's fault or is it corporations caring too much of profit that they will do anything to make an extra pennie? How many times have you heard about oil spills? Personally I have lost count of the ever increasing number of oil spills. Deforestation is also caused caused by corporate greed acording to…

Six Great Extinctions Extinction is just another word used for the dying off of one species or of many species. Since the beginning of time there have been five mass extinction and then some smaller extinctions. Either big or small, they play a huge role in the evolution of the species around us. Whether they were a common ancestor, or a close relative to an organism, they still helped the organisms we know today evolve and adapt to the environment that we now share. During the extinction…

I'm going to talk about the geologic evidence of the permian triassic extinction. This is a volcanic scenario. There are different geologic reasons for the permian triassic i'm going to tell you about them . During this period there has been documented changes in the air. The atmosphere went evey high which means high levels oxygen was about 30%. When it was low it was about 15%. In this time the salinity in the sea was filled with sharply during the period about 250 million years ago…

The Permian-Triassic extinction is seen as one of the largest mass extinction in the history of life. According to the McGraw-Hill Dictionary (2003) it can be defined as a mass extinction event marking the division between the Permian Period and the Triassic Period as well as the border between the Palaeozoic and Mesozoic eras. It is estimated to have triggered the extinction of 90% or more of all ocean species, approximately 70% of land vertebrates, and significant extinctions of plants and…

Chicxulub Crater and Mass Extinctions.” This book began talking about the five mass extinctions and what a mass extinction was. It stated that the best studied of all mass extinctions was the fifth mass extinction. This is because it was the closest to us in time, and it wiped out roughly 70% of all species. This lead to the books next topic, how this mass extinction occurred. In the beginning, most scientists were gradualists, meaning they believed the fifth mass extinction happened gradually.…

The Sixth Extinction by Elizabeth Kolbert describes Earth's five previous mass extinctions and how humans are to blame for leading our biodiversity into a sixth mass extinction. As an animal lover and an Earth-history enthusiast, I was excited to begin The Sixth Extinction. Kolbert begins by documenting her scientific journeys, relating biodiversity's current extinction rates, to the previous five, showing the interconnectedness through history. Following this, Kolbert emphasizes that we are…

most to see resurrected. Astonishingly, scientists have actually finagled a way to potentially make this poll useful. Biological scientists have discovered a method to conceivably resurrect extinct animals from their evolutionary graves. Termed de-extinction or species revival, this concept has evoked a substantial amount of social, ethical, and legal friction. Although the…

artificially. These are all questions that can be addressed from different points by examining a variety of ideas and sources to clearly picture what a species is by definition and opinion and what implications extinction carries which is the running theme for this essay. What a species…

GANGANNA RAVINDRA Abstract— About Sixty-five million years ago, one of last non-avian reptile species called dinosaurs vanished from the earth. The extinction of this huge animal is a never-ending topic of interest, the mass extension of dinosaurs occurred over a very short geological period. Keywords— Non-Avian Dinosaurs, Mass extinction, Dinosaurs extinction theories; Asteroid impact; Volcanism; I. INTRODUCTION Dinosaurs are the certain group of reptiles which influenced and ruled the…

The article “Eating Frogs to Extinction” by Ian Warkentin addresses amphibians, particularly frogs, contributes a significant role in the gastronomy of several cultures, thus leading amphibians susceptible to mass extinction. The article begins with a list of factors that is leading to the rising cause of amphibians’ extinction; from environmental degradation to community instability to individual mechanism. These factors include their role as important prey and predators, habitat loss,…