This document discusses cloning extinct species by taking DNA samples and transferring them to closely related living species. It provides two key arguments for cloning extinct animals. The first is that cloning could help prevent endangered species from going extinct by enabling reproduction. The second is that cloning extinct animals would allow scientists to directly study and observe what these ancient species looked like and how they behaved. Cloning could potentially lead to reintroducing certain cloned species to the wild if their populations grow and show good behavior.