Dr. Jorn Hurum of New York's Museum of Natural History and the University of Oslo (R) shows New York City Mayor Michael Bloomberg (C) and David Young, CEO of Hachette Book Group (L) a 47 million year old primate fossil known as "Ida" at the Museum of Natural History May 19, 2009, where the find was unveiled. Scientists from the University of Oslo in Norway and the Senckenberg Research institute revealed the female specimen said to be the most complete fossil primate ever found. Reuters Pictures 5 months ago

Dr. Jorn Hurum of New York's Museum of Natural History and the University of Oslo (R) shows New York City Mayor Michael Bloomberg (C) and David Young, CEO of Hachette Book Group (L) a 47 million year old primate fossil known as "Ida" at the Museum of Natural History May 19, 2009, where the find was unveiled. Scientists from the University of Oslo in Norway and the Senckenberg Research institute revealed the female specimen said to be the most complete fossil primate ever found.