Extinct Animals: could they rise again? By Adolph Vargas
My Topic • For this project on genetics, I chose to focus on the topic of genetically reproducing extinct animals. • In simpler terms, my project is about how scientists are trying to use DNA from extinct animals to bring them back to life. • I chose this topic because it was something that interested me, and I always thought about. What would happen if a movie like “Jurassic Park” was real?
The History of Genetic Cloning • Though you might not know, scientists have already succeeded many times in cloning living organisms. • Scientists have already cloned mice, frogs, cows, sheep, and more. • On the next slide I will present to you a timeline of the Evolution of Genetic Cloning.
Timeline 2001: The first endangered species clone is ever made, which is a Gaur ox. 1996: Dolly the sheep is cloned in Scotland. She is the first organism to be cloned from an adult. 1902: A scientist named Hans Spemman comes up with the idea of using the nucleus from one full grown cell a to grow another adult. The Future… Late 1800’s: A scientist named Hans Dreisch splits a sea urchin cell in two, and lets them grow separately. 1986: The first mammals are cloned. A team in England clones a sheep, and a team in America clones a cow. 1997: In Hawaii, Cumulina the mouse is cloned, and the scientists make 50 identical clones
How It’s Done • The process of cloning animals and such isn’t very difficult. • The basic process consists of 6 steps: • Step 1: Take a cell from the organism you want to clone, and a cell from an egg cell donor. • Step 2: Take the nucleus from the egg cell, and then the nucleus from the original animal’s cell. • Step 3: Place the nucleus from the animal cell into the egg cell. • Step 4: Stimulate the cell to make it go through mitosis. • Step 5: Once the cell divides several times, you place the newly formed embryo into a new “surrogate” mother. • Step 6: The “surrogate” mother gives birth to the clone, after being pregnant with it for several days or months, depending on the organism cloned. • Here is a link to a website where you can do the process yourself: http://learn.genetics.utah.edu/content/tech/cloning/clickandclone/
How to Do This With Extinct Animals • Right now you are probably thinking, “If sounds so easy, why can’t we just make dinosaurs, and mammoths, and stuff like that?” • Well the problem with extinct animals is that we can’t find have enough DNA from these organisms to reproduce them. • To clone extinct animals, scientists need DNA from the animal, cells from it, and another animal to plant the embryo into.
Why We Can’t Clone Dinosaurs • There are many issues with cloning extinct species, such as dinosaurs. • The biggest problem would be finding dinosaur DNA. • The only dinosaur remains we have are fossils and bones. • Because these fossils are millions of years old, the DNA in them is too weak to be used for cloning. • You can compare this to trying to get nutrients and vitamins from and old piece of bread. As time goes on, the bread loses more and more nutrients until it doesn’t have enough to positively affect you. Not to mention that it would taste bad.
Why We Might Be Able to Clone Mammoths • However… scientists are on to something with woolly mammoths. • Since woolly mammoths lived during the ice age, when they died they some of the mammoths would be frozen. • Thanks to the cold climate, scientists in Russia have found several frozen mammoth carcasses, beautifully preserved and almost completely intact in the ice. • They are currently trying to extract DNA from the mammoths, and are trying to find a way to use it to clone them.
Why Bring them Back? • Some of you might be thinking: “Why would anybody want to bring back a dinosaur or a mammoth?” • There could be several positive and negative effects of bringing back extinct creatures such as these. • On the next slide we will examine both sides of the argument.
My View • Personally, I think that cloning extinct animals could be good or bad, depending on the reasons why you want to do it. • Part of me says it’s wrong, because everything happens for a reason, and these creatures probably went extinct for a reason. • But then again, who wouldn’t want to see an extinct, never before seen animal? • Therefore, I am undecided on this topic.
Should We? • Though we can, and probably eventually will clone extinct beasts, the big moral question is: “Should we?” • Some say that doing this would be playing as God, and is wrong. • Others say that if these creatures went extinct, its for a reason. • But whether you agree or not is your decision, so now comes your part: What Do You Think?
Bibliography • http://quotations.hubpages.com/hub/Bringing-Extinct-Animals-back-To-Life-Using-Cloning • "Cloning Extinct Animals - Can Extinct Species Be Brought Back to Life Using Cloning." Quotations on HubPages. Web. 18 Jan. 2012. <http://quotations.hubpages.com/hub/Bringing-Extinct-Animals-back-To-Life-Using-Cloning>. • http://learn.genetics.utah.edu/content/tech/cloning/clickandclone/ • "Click and Clone." Learn.Genetics™. University Of Utah, 2012. Web. 18 Jan. 2012. <http://learn.genetics.utah.edu/content/tech/cloning/clickandclone/>. • http://www.telegraph.co.uk/science/science-news/4409958/Extinct-ibex-is-resurrected-by-cloning.html • Gray, Richard, and Roger Dobson. "Extinct Ibex Is Resurrected by Cloning - Telegraph." Telegraph.co.uk - Telegraph Online, Daily Telegraph and Sunday Telegraph - Telegraph. The Telegraph, 31 Jan. 2009. Web. 18 Jan. 2012. <http://www.telegraph.co.uk/science/science-news/4409958/Extinct-ibex-is-resurrected-by-cloning.html>. • http://ngm.nationalgeographic.com/2009/05/cloned-species/mueller-text/2 • Mueller, Tom. "Cloned Species — National Geographic Magazine." National Geographic Magazine. National Geographic Society, May 2009. Web. 18 Jan. 2012. <http://ngm.nationalgeographic.com/2009/05/cloned-species/mueller-text/2>. • http://www.animalresearch.info/en/medical/timeline/Dolly • "Cloning Dolly the Sheep - AnimalResearch.info." Home - AnimalResearch.info. Web. 18 Jan. 2012. <http://www.animalresearch.info/en/medical/timeline/Dolly>. • http://library.thinkquest.org/20830/Frameless/Manipulating/Experimentation/Cloning/longdoc.htm • "History Of Cloning." Library.thinkquest.org. Oracle Education Foundation. Web. 18 Jan. 2012. <http://library.thinkquest.org/20830/Frameless/Manipulating/Experimentation/Cloning/longdoc.htm>. • Fritz, Sandy. Understanding Cloning. New York, NY: Warner, 2002. Print.