Hal Cohen | Nov 24, 2002 | 1 min read
When asked to explain the need to study cellular evolution, W. Ford Doolittle, professor of biochemistry at Dalhousie University, Halifax, Nova Scotia, offered the following scenario: "If martians were to visit us and ask where we came from and how we got here, and we were to say we didn't think it was worth pursuing, I'd be embarrassed." The origins and evolution of life are still a mystery, and opportunities abound for those with the temerity to broach this primordial problem. For example,