I got to Africa. I got the opportunity to go and learn, not about any animal, but chimpanzees. I was living in my dream world, the forest in Gombe National Park in Tanzania. It was Tanganyika when I began.

Over the summit, I saw the so-called Mono desert lying dreamily silent in the thick, purple light -- a desert of heavy sun-glare beheld from a desert of ice-burnished granite.

October is the month for painted leaves. Their rich glow now flashes round the world. As fruits and leaves and the day itself acquire a bright tint just before they fall, so the year near its setting. October is its sunset sky; November the later twilight.

What we are doing is, rather than living on the interest of our basic biological capital, we're using up our capital, so we're dipping into our capital. We're using up what should be our children's and grandchildren's legacy.

Alas! how little does the memory of these human inhabitants enhance the beauty of the landscape!

We are already perilously close to killing off the top of the oceanic food chain - with catastrophic consequences that we can't begin to imagine. Let us not, in the heat of anger, reduce the already devastated population of great white sharks by one more member.