The Top 10 Myths About Dinosaur Extinction Misconceptions About the Extinction of Dinosaurs Cen Chen We all know that the dinosaurs mysteriously (or not so mysteriously) vanished off the face of the earth about 65 million years ago‚ a mass extinction that still lingers in the popular imagination. How could creatures so huge‚ so fierce and so successful go down the drain virtually overnight‚ along with their close cousins‚ the pterosaurs and marine reptiles? The details are still being worked out
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in the readings‚ extinction is a natural selection process. You have also read that humans are often responsible for accelerating this process. Using at least two scholarly or reputable resources and your textbook‚ address whether or not we as humans should be concerned with the extinction rate. Additionally‚ discuss whether or not humans should strive to preserve representative samples of all biomes on the planet. Yes‚ I believe that humans should be concerned with the extinction rate. Humans are
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decide which of three explanations for the extinction of the dinosaurs you like best. Write an explanation of why you like it. Sex: Testes function only in a narrow range of temperature. (Those of mammals hang externally in a scrotal sac because internal body temperatures are too high for their proper function.) A worldwide rise in temperature at the close of the Cretaceous period caused the testes of dinosaurs to stop functioning and led to their extinction by sterilization of males. Drugs: Angiosperms
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result‚ vital animals began to disappear. However‚ hunting is not the only reason why there has been a sharp increase in animal extinction. Pollution and other hazardous waste have destroyed the natural habitats of many animals. Not only has it stripped them from their homes‚ but it has deprived them of food and a clean water supply. All these factors have lead to the extinction of a plethora of animals. Yet‚ we
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time progresses‚ the Earth’s ecosystem is continuously changing rapidly‚ mostly in the reason of human impact. Humans make huge impacts on the world and many of those impacts involves human-caused extinctions. Evidently‚ this has become a huge issue relating on biodiversity and there have been many extinctions due to global warming‚ pollution‚ hunting‚ etc. In addition‚ there are many conservation acts being placed on endangered species for protection and the species are placed out of their normal habitat
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There have been many investigated causes for this‚ but the scientific community cannot decide on one for sure. This is due to lack of evidence for each theory. The most common current theories about the extinction are over hunting‚ climate change and disease. One of the possible causes of extinction of the megafauna is climate change. This is predicted as the megafauna all around the world became extinct close to the end of the last ice age and just and the climate was getting warmer (Florek‚ 2015)
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For this week’s reflection assignment‚ we were presented with several videos. Of the four‚ I chose to watch the one titled "Tedx: De Extinction: a game changer for conservation biology. The featured presenter is Mr. Stanley Temple‚ a noted conservation biologist who has experience in the preservation of several species. The video was posted to youtube.com by Tedx Talks. Mr. Stanley begins his lecture by stating in his early childhood he was interested in the conservation of animals. This was the
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The Late Quaternary Extinction happened approximately fifty to ten thousand years ago‚ and recently in the nineteenth century new light was shed upon why this extinction had happened and why it this extinction primarily targeted large animals. This extinction is vastly studied because it appeared to be more selective of large mammals than pervious extinction in North America. With recent advancements of carbon dating there has been hypothesis other than the over kill hypothesis which was primarily
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and life forms present during this period‚ the events surrounding the mass extinction that signified its end remains a mystery today. The end-Permian mass extinction is regarded as the largest mass extinction event in the earth’s history‚ with marine and terrestrial life declining by 95% and 75% respectively (Shen et al. 2014). While clear that life on earth was greatly affected‚ many scientists are conflicted on the cause/causes of the extinction event.
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Dear Mr Clarkson‚ I have recently read your article ‘Stuff the Tiger – long live extinction’ and disagree strongly with the views you put forward. Your arguments are unjustified and the examples you use to demonstrate are faulty and contradicting to each other . In this article‚ you have mentioned how extinction doesn’t have any impact on mankind. Also‚ your opinions were based upon natural extinction and Darwin’s theory of the survival of the fittest instead of human intervention. I would like
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