The primate laugh is given in playful contexts, and as such has a strong similarity to the human laugh.

Future benefits rarely figure in the minds of animals.

Morality, after all, has nothing to do with selflessness. On the contrary, self-interest is precisely the basis of the categorical imperative.

Armies are a purely human invention. Most soldiers who go to war nowadays don't even do it because they're inherently aggressive.

Human morality is unthinkable without empathy.

The evolutionary struggle for survival is really a self-serving series of blows and stabs, and yet it can lead to extremely social animals like dolphins, wolves or, for that matter, primates.

I was raised Catholic. Not just a little bit Catholic, like my wife, Catherine. When she was young, many Catholics in France already barely went to church, except for the big three: baptism, marriage, and funeral. And only the middle one was by choice.