Science Kids Cloning Endangered Species - Pros and Cons The video discusses the potential for cloning extinct species, focusing on the challenges and possibilities of bringing back animals like the woolly mammoth, passenger pigeon, and dodo bird. Scientists are exploring methods such as editing DNA and finding suitable surrogate hosts for carrying cloned embryos to term. While cloning mammals like the woolly mammoth seems more feasible in the near future, the process for cloning birds presents unique obstacles that researchers are still working to overcome.