Scientists have found a way to possibly bring back extinct species through living ones. There is a debate in the science world not only if this is unethical, but if the cost would be worth it. What would be the benefit of bringing back lost species? Scientists think that this may help show details about evolution that we may not know yet, and help us learn about the Earth post-Ice Age.

The debate is whether nor not this cost would be worth it, especially because although the past is important, it will not help us in our future. The other side suggests that the Earth goes in a cycle with it’s atmosphere, and that eventually we could go towards another Ice Age.