MUMAKIL – From The Lord of the Rings
For the non-nerds: Mumakil, also known as Oliphaunts, are giant elephant-like creatures from Middle Earth. They were seen briefly in the second Lord of the Rings movie, but are most likly to be remembered from the third Lord of the Rings movie, as they charged into battle against the cavalry army of Rohan.
The Mumakil are used by the Haradrim, a culture of humans from the southern parts of Middle Earth. The Haradrim enlisted themselves with Sauron during the events in The Lord of the Rings.
For the nerds: The Mumakil are from the jungles of Far Harad, the jungles that fill up the most southern portions of Harad. The Haradrim were very straightforward with their location naming.
There were not many Mumakil alive at any one time, just for the fact that even one Mumakil required so much land and resources. After the Battle of the Pelennor Fields in which vast numbers of the beasts were slaughtered, Mumakils were believed to have come close to extinction.