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Chairman of the Department of Verte- 

 brate Paleontology at the American Mu- 



Every chance he can get, Philip Gin- 

 gerich (page 86) travels to the sandy 

 Fayum region of Egypt or to northern 

 Pakistan, sites that are the world's most 

 productive whale graveyards. His 1989 

 Fayum expedition resulted in the first 

 specimen of a whale with functional legs 

 and toes. On his field trips, Gingerich is 

 often accompanied by his wife. Holly 

 Smith, a physical anthropologist and ex- 

 perienced paleontologist. Gingerich grew 

 up in a rural Mennonite community in 

 Iowa, where geological time and evolu- 

 tion were as distant as Egypt and Pak- 

 istan. He jumped at the opportunity to 

 study geology in college. Now a professor 

 of geological sciences and director of the 

 Museum of Paleontology at the Univer- 



Esther Beaton (page 100), was bom in 

 Budapest, Hungary, and grew up in Cali- 

 fornia. Having Uved on two continents, 

 she was attracted to a third and moved to 

 Australia in 1973. Fascinated by the 

 beauty of the animals around her, particu- 

 larly the brilliantly colored parrots, she 

 began her career in wildlife photography. 



seum of Natural History, Richard H. 

 Tedford (pages 74 and 90) began his 

 studies of the order Camivora while a 

 graduate student at the University of Cali- 

 fornia, Berkeley. He has concentrated on 

 the Caniformia, the suborder that includes 

 dogs, bears, sea lions, raccoons, weasels, 

 and their relatives. "For me," he says, 

 "one of the thrills of the Museum's new 

 exhibition halls is the opportunity to place 

 the skeleton of the extinct bear-dog Am- 

 phicyon in an active pose corresponding 

 to its fossil tracks." A veteran of field- 

 work in the United States, AustraUa, and 

 China, he has documented the changing 

 composition of fauna in these regions and 

 used these events to measure geologic 

 time and to mark past ecological changes. 



sity of Michigan in Ann Arbor, he is par- 

 ticularly interested in quantifying rates of 

 evolution and using these as guides to un- 

 derstanding the process of evolution. 



For six years Beaton photographed wild- 

 life and landscapes for the Parks and 

 Conservation Service. Then she decided 

 to risk self-employment, and with another 

 photographer, founded the well-known 

 stock library Auscape International. Cur- 

 rendy, she is free-lancing and living near 

 Sydney. She came across the procession- 

 ary caterpillars featured in this month's 

 "Natural Moment" while leading a nature 

 tour near Alice Springs. "I had heard dri- 

 vers and station heads tell how they had 

 mistakenly ridden into masses of the 'bag 

 moths' or 'itchy grubs' and been covered 

 by millions of fiery stings, and I had 

 come across them hanging in their bags 

 from acacia trees. But this was the first 

 time I had actually witnessed this little- 

 seen event." Beaton took the photograph 

 using a Nikon N8008 with an autofocus 

 12.8 Micro lens. 



106 Natural History 4/94 



