Pleistocene rewilding The mountain tapir is the only extant non-tropical species of tapir. Predators of mountain tapirs include cougars, bears, and, less commonly, jaguars. Good introduction areas might include forested ecosystems of the west and east coasts, and the more scrub-like or wetland ecosystem of the south. During the Pleistocene, large populations of Proboscideans lived in North America, such as the Columbian mammoth and the American mastodon. The mastodons all became extinct at the end of the Pleistocene era, as did the mammoths of North America. However, an extant relative of the mammoth is the Asian elephant. It now resides only in
Extinct language may be considered "extinct", especially in cases where they did not leave a corpus of literature or liturgy that remained in widespread use (see corpus language), as is the case with e.g. Old English or Old High German relative to their contemporary descendants, English and German. Some degree of misunderstanding can result from designating languages such as Old English and Old High German as extinct, or Latin dead, while ignoring their evolution as a language. This is expressed in the apparent paradox "Latin is a dead language, but Latin never died." A language such as Etruscan, for example, can be