A visitor looks at the skeleton of the 15,000-year-old Siberian mammoth during an unusual auction of paleontological curiosities, including several prehistoric mammals at Christie's auction house in Paris on Monday. The masterpiece, a skeleton of the 15,000-year-old Siberian mammoth dubbed "The President" was bought for $352,331. The name of the buyer was not made public. (AP Photo/Francois Mori) Francois Mori