Why do many people think it is not right to attemp to “bring back” extinct species?

Question

Conservation

Answer 1

These species are extinct for a reason. If we brought them back, we would have to restart our culture, our race, etc. They would mess with the environment as well of having the possibility of changing the food chain.

Answer 2

You have obviously never watched Jurassic park! I guess the only real reason I can think of is that they would be affected by diseases/viruses and whatnot that were not around back then.  They were poorly adapted(or hunted ><)so they died out - that's another thing why do we still have giant pandas they are poorly adapted and should have died out but we insist on trying to conserve them  

Answer 3

Because many ppl don't want destruction by dinosaurs to come.

Answer 4

If you are talking about species recently made extent by man destroying their place to live, that's one thing.  If you are talking about bringing back animals that have been extinct for hundreds or thousands of years, you would be bringing foreign species into an ecosystem, which can be extremely destructive to the life that is already there.  

Answer 5

Those who are 'religious' thinks that it is not right to play god.  Bringing back extinct species could translate into allowing bringing back dead people.

If you want a more scientific answer, then this might be the main reason: it is harmful to bring them back.  They are extinct, primarily because they cannot adapt to the new environment.  The strong shall live, the weak shall die.  Bringing them back just mean disruption of the "natural system" that is at work at the moment.  Think about this, A eats B and B eats C.  And population of A, B and C are at 'norm'.  Now, the extinct species D is known to eat species B.  If you just suddenly introduce D into the system, A population will drop and species B would soon become extinct while population C will suddenly increases.  After awhile, you have population B that is extinct, so what will be your solution, bring back to life population B, isn't that just non-sense?

So, there is the ethical reason and practical reason for not bringing back extinct species.

Answer 6

I did not know that, but i would think twice to bring the extinct ones back,  , we are not sure of the environmental and ecological impact it may have.

beside we might learn more from the living ones that we have not discovered yet? The numbers are astronomical.

Answer 7

  We can't really bring them back anyway. When scientists "clone" animals, they really just inject an animal's DNA into a living animal's embryo, so that the clone is more half and half than identical. In the case of most extinct animals (dinosaurs, giant sloths, etc.) i doubt you could find a compatible mother, so they're pretty much gone for good. In the case of more recently extinct animals, it would be very difficult to create a healthy breeding population. We don't have too much DNA (if any) on animals like the Tasmanian wolf that went extinct recently, so any "half-clones" that were created would be all very closely related, leading to worse problems with lack of genetic diversity in the descendants.

Besides all that, there's the issue of the morality of cloning animals. I think cloning in any case is irresponsible and just a way for people to try and acheive power over something out of their control. Like that lady who got her dog cloned and has 5 puppies now; I don't care how much you love your dog, its time to let it go when it dies. If we are able to recreate life without consequence, then normal life is no longer precious to us. If scientists learn how to clone animals effectively, they will just begin replacing endangered animals with these clones. They would try and make this a simple solution for a very difficult problem, but that is not the solution we need. We need to realize how fragile life is, and that we need to protect it before it is gone, because simply engineering life just teaches us that we can destroy our world and magically fix it all so that its like extinction never happened in the first place. And if we think that we can continue to harm the environment without any lasting consequences, then all h**l will break loose. "That oil pipeline will travel through the last safe habitat of the critically endagered Amur leopard? Oh, that's okay, we'll just have the scientists zap a few new ones into being if they die." Is this the kind of world we want to live in?

Answer 8

They are stupid.  Most species are extinct because of human activity.  If humans can bring them back from extinction, why not?  

Answer 9

if it is for good why not?

Answer 10

You can't play God. They are extinct for a reason.

I don't know about you but I wouldn't want a T-Rex coming back to life to eat me.