Every individual matters. Every individual has a role to play. Every individual makes a difference.

The least I can do is speak out for the hundreds of chimpanzees who, right now, sit hunched, miserable and without hope, staring out with dead eyes from their metal prisons. They cannot speak for...

What you do makes a difference, and you have to decide what kind of difference you want to make.

In what terms should we think of these beings, nonhuman yet possessing so very many human-like characteristics? How should we treat them? Surely we should treat them with the same consideration and kindness as we...

Here we are, the most clever species ever to have lived. So how is it we can destroy the only planet we have?

We have so far to go to realize our human potential for compassion, altruism, and love.

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

Someday we shall look back on this dark era of agriculture and shake our heads. How could we have ever believed that it was a good idea to grow our food with poisons?

But let us not forget that human love and compassion are equally deeply rooted in our primate heritage, and in this sphere too our sensibilities are of a higher order of magnitude than those of...