Other people have talked about chimpanzees being a window into the past, which I suppose is true, in a way.

One thing I had learned from watching chimpanzees with their infants is that having a child should be fun.

The Soul of Money is an inspired and utterly fascinating book. It will change the way you think about money. ... It is a book for everyone who would like to make the world a better place.

Whales, like elephants, are so social and intelligent. This hurts me to think of them being transported, put in noisy airplanes, and brought to a horrible concrete pen when they're supposed to be out in the sea.

Of course we're all programmed genetically to some extent. But the "selfish gene" thesis doesn't explain everything.

I think the most important thing is to keep active, and to hope that your mind stays active.

Other people have talked about chimpanzees being a window into the past, which I suppose is true, in a way.