George Schaller: The forest where I was working had a lot of trees with big low branches.  So to see them better in the vegetation, I’d climb and sit on a branch.  And the female gorilla climbed up and sat on a branch next to me.  Well, we were both a little nervous.  She’d look at me and then quickly look away.  I’d do the same.  So we sat there awhile, and then she climbed down and walked off.  Now, that’s lovely.  And then others started coming close when I’d come near.  I didn’t encourage it, but I just stayed there.  It got so I could sleep with them at night.  I’d see where they’re going to bed down.  I’d lie down a hundred feet away or so and spend the night to find out what goes on.