If you've ever wanted to own a piece of prehistory (and have cash to burn), you'll want to check out the natural history auction taking place at the Venetian Hotel in Las Vegas on October 3rd. For between $2 to 8 million, you can pick up Samson, one of the most complete T-Rex skeletons ever assembled. And if your budget falls under half a million dollars, you can still get yourself a perfectly respectable mammoth skeleton or duck-billed dinosaur. [Wired]