To endow animals with human emotions has long been a scientific taboo. But if we do not, we risk missing something fundamental, about both animals and us.

It is hard to get animals which normally pay little attention to each other to do things together. One can teach dolphins to jump simultaneously out of the water precisely because they show similar behavior spontaneously, but try to make two domestic cats jump together and you will fail.

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

In humans, the family prevents infanticide. Next to language, the core family, consisting of a mother, a father and children, is the greatest difference between us and other primates.

Robin Hood had it right.Humanity's deepest wish is to spread the wealth.

The more self-aware an animal is, the more empathetic it tends to be.

Humans have a lot of pro-social tendencies.