On a visitto the American Museum of Natural History in New York three years ago, Dennis Hong was captivated not by the giant blue whale, or the Tyrannosaurus rex skeleton, but by the ankle bone of a timid prehistoric deer.
![]("http://www.washingtonpost.com/rf/image_606w/2010-2019/WashingtonPost/2011/11/01/Web-Resampled/2011-11-01/df2011057_116_1317259440--606x404.jpg")
!["Smaller]("http://www.washingtonpost.com/rw/sites/twpweb/img/icons/icon-minus.png"){kind=icon}
!["Larger]("http://www.washingtonpost.com/rw/sites/twpweb/img/icons/icon-plus.png"){kind=icon}