I'm the largest from my own kind, and despite that I don't have anything in common with others I was uncovered. Who stood in the head of the group that uncovered me?

There is an answer here: I'm the largest from my own kind, and despite that I... (http://www.answerbag.com/q_view/921365)
And here: A Riddle about someone who is the largest from his own kind.? - Yahoo! Answers (http://answers.yahoo.com/question/index?qid=20080819045134AA00UML)
(Don't know if you should trust them though)

What can be driven but has no wheels. It can be sliced and still remain whole