mm 



DEPARTMENTS 



4 THE NATURAL MOMENT 



Nap Time 



Photograph by Theo Allofs 



6 UP FRONT 



Editor's Notebook 



8 CONTRIBUTORS 

 10 LETTERS 



14 SAMPLINGS 



News from Nature 



18 UNIVERSE 



The Light Brigade 

 Neil deGrasse Tyson 



30 BIOMECHANICS 



When the Shark Bites 

 Adam Summers 



18 



PICTURE CREDITS: Page 66 



Visit our Web site at 

 www.naturalhistorymag.com 



60 



THIS LAND 



Mesa Country 

 Robert H. Mohlenbrock 



62 BOOKSHELF 



Laurence A. Marschdll 



64 nature.net 



First Animals 

 Robert Anderson 



70 OUT THERE 



Slammin' the Milky Way 

 Charles Liu 



75 THE SKY IN MARCH 



Joe Rao 



76 AT THE MUSEUM 



80 ENDPAPER 



Growing Up in the Treetops 

 Margaret D. Lowman, Edward 

 Burgess, and James Burgess 



