This should be an interesting ethical question: Should extinct animals be allowed to be cloned? I've recently watched a documentary about the most recent global ice age, and scientists found preserved blood of a mammoth in Russian permafrost for 40,000 years (
here is an article about the discovery). So theoretically, it could be possible to clone the mammoth. The scientists, however, raised the question whether this would be ethical or not.
I have mixed feelings, but generally think it shouldn't be just outlawed. Thoughts?