The Savage Land is a tropical region surrounded by volcanoes deep in Antarctica, created over 200 million years ago by the alien Nuwali as one of several planetary "game preserves" for the mysterious godlike Beyonders. The Beyonders sought to observe the process of evolution under relatively controlled conditions and had the Nuwali set up a number of game preserves on several planets. One of these planets was Earth during the Triassic period where the Nuwali chose a valley in Antarctica surrounded by active volcanoes, where they installed a number of advanced technological devices in order to maintain a tropical climate. The aliens then stocked the area with all manner of Earth life over the following several millennia. They also brought over the Man-Apes, earlier hominid ancestors of "Homo sapiens."

     The Beyonders eventually grew bored with the experiment, and the Nuwali stopped maintaining the Savage Land during the Late Pleistocene (the Ice Age era). However, the self-maintaining technology that allowed the pocket of tropical climate was left running, and many species which became extinct in other areas of the Earth continued to thrive within the Savage Land. Not many know of the Savage Land, but is considered offlimits to all civiliains of any country.