Camelops clintonus, is believed to have gone extinct from its range around Arkansas, along with its contemporary, camelops hesturnus, just before the end of the last ice age.
Recently, evidence suggests that Al Quaeda has begun genetic experimentation in Qatar to develop a new invincible class of battle camel based on that same genetics with funding from Saudi extremists and, it is rumored, from someone connected to the Whitehouse.
Three Humped Camel spotted at Dukhan

The problem is that their researchers won’t stop copulating with the camels long enough for them to eat. They’ve lost 14 of the new camels so far (and the researchers have picked up countless cases of crotch rot)