Bring Back The Extinct

Some scientists are doing things that we thought were only possible in sci-fi. Many animals have been extinct for 10s of thousands of years, for example mammoths, saber-tooth cat, ground sloths. Studying ancient DNA has only been started in the past 20 years. Cloning, and inter-species cloning is happening right now. To clone ancient animals you need the DNA from them, and the DNA needs to be preserved. People are searching Antarctica for more DNA.