Certainly, if you look at human behavior around the world, you have to admit that we can be very aggressive.

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

I learnt from Flo how to be mother. Flo was patient, tolerant. She was supportive. She was always there. She was playful. She enjoyed having her babies, as good mothers do.

....I understood why those who had lived through war or economic disasters, and who had built for themselves a good life and a high standard of living, were rightly proud to be able to provide for their children those things which they themselves had not had. And why their children, inevitably, took those things for granted. It meant that new values and new expectations had crept into our societies along with new standards of living. Hence the materialistic and often greedy and selfish lifestyle of so many young people in the Western world, especially in the United States.

Some humans are mathematicians-others aren't.

Anyone who tries to improve the lives of animals invariably comes in for criticism from those who believe such efforts are misplaced in a world of suffering humanity.

Mainly because as women's education increases all around the planet, we find that family size tends to drop.