Preventing a Species from Extinction Whether should people prevent a species from being extinct or not seems not a controversial topic. Nowadays‚ a lot of people will agree on protecting endangered species. However‚ most people still have some questions. Why should people prevent a species from extinction? Is it Important? What can humans get from protecting rare species? We can answer these questions from three aspects. People should prevent a species from extinction because humans have the responsibility
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number of families (Sepkoski‚ 1986) and an estimated 96% extinction at the species level (Raup‚ 1979). Oceanic life suffered the most but terrestrial life forms were also greatly affected. There was a 77% reduction in the number of tetrapod families (Maxwell and Benton‚ 1987). All major groups of oceanic organisms were affected with the crinozoans (98%)‚ anthozoans (96%)‚ brachiopods (80%) and bryozoans (79%) suffering the greatest extinction (McKinney‚ 1987). The end of
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COMPARATIVE ANATOMY OF VERTEBRATES For the past years‚ extinction is still the major concern of most scientists‚ a problem and phenomenon that encompass all living organisms here on Earth. But do we all know how extinction happens and what are its causes? Just like the topic shared by Mr. Vance Vredenberg concerning the unusual decline in frog’s population‚ extinction is really something anyone should be aware of. According to him‚ extinction of organisms may be caused by any of the following: habitat
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* My favorite bear is the Chicago Bears mascot. This is the team Brian Urlacher plays for now. He has played for the Bears his entire professional career. During his time with the Bears he has gone to the Super Bowl and several Pro Bowls. His rookie year‚ Brian won the Defensive Player of the Year Award for most outstanding Linebacker in the NFL. Growing up as a child‚ he had a rough life but it didn’t stop him from playing great football through from the time he was young to the time he
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The mass extinction of dinosaurs is still a mystery today but their are many theories supporting how and why approximately 70% of all living species on earth suddenly became extinct including dinosaurs‚ 66 million years ago. The most common and realistic theory is the astroid impact theory when a astroid 6-15 km in diameter hit earth with the force of five billion atomic bombs. Another possible theory is climate change‚ the dinosaurs didn’t adapt fast enough to the climate when it was changing and
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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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Task 9: Mass Extinctions Introduction: In this report I will talk to you about the 5 mass extinctions that have happened on earth over the past 434 million years. I will also talk to you about the effects of the current mass extinction. The last things i will show is a list of 10 recently extinct species and 10 endangered species. Number 1: The Ordovician Silurian Extinction This extinction happened about 439 million years ago‚ because of a drop in sea levels as glaciers formed. An ice age has been
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extinction is the end of an organism or of a group of organisms (taxon)‚ normally a species. Ordovician-Silurian extinction‚ global extinction event occurring during the Hirnantian Age (445.6 million to 443.7 million years ago) of the Ordovician Period and the subsequent Rhuddanian Age (443.7 million to 439 million years ago) of the Silurian Period that eliminated an estimated 85 percent of all Ordovician species. This extinction interval ranks second in severity to the one that occurred at the
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Most humans are scared of bees‚ but bees are vital in many ways. The extinction of bees can cause a huge environmental impact‚ just like the extinction of any creature‚ but what would happen? I love bees‚ but many people kill bees because they are afraid of them‚ but my grandfather kept bees and there was nothing to be afraid of. Many people don’t believe that bees are so nice because of their experiences of stinging‚ but what really is the truth? How do bees interact with humans? Should we
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Elizabeth Kolbert wrote The Sixth Extinction as an attempt to explain and give examples of what seems to be a 6th extinction event currently happening in the modern world. We have discussed and learned about five other extinction events throughout this semester‚ and Kolbert pushes this 6th extinction event as a new rapid extinction predominantly caused by humans. One of the underlying causes of this 6th extinction event discussed in the book is the mass killing of both animals and humans. Another
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