One of Three in the World: Sotheby's Puts a Nanotyrannus Called Jodi on Offer

Sotheby's has brought a Nanotyrannus skeleton, which goes by the name Jodi, to market at $9 million. Only three skeletons of this dinosaur are on record, so a collector rarely gets to buy one. Fossils this scarce seldom change hands, and when one does, everyone who follows the natural-history market pays attention.

With reporting from Galerie.