George Schaller: You realize early on that — you do a good scientific study and publish it, somebody will come on and continue that work with new questions, new answers.  So this is an evolving situation, and it’s never a final one.  So I was happy to do good studies, but then it turned into conservation, that I wanted to set up protected areas for these animals.  You have a moral obligation, in effect, to help the animals that you study.  Then the other very important step is that you find local graduate students in the country where you’re working, take them into the field, and get them enthusiastic about studying their own wildlife in their own country.  That, in the final analysis, has given me probably the most satisfaction, when I look at some of these countries that I worked in.