When it comes to social interaction, the chimpanzees appear to be just as intelligent as we are.

A chimpanzee who is really gearing up for a fight doesn't waste time with gestures but just goes ahead and attacks.

Exclusive homosexuality is not very common in nature.

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.

When someone brutally kills someone else, we call him "animalistic." But we consider ourselves "human" when we give to the poor.

We are territorial, power-hungry and even more brutal than chimpanzees.

Humans became easy prey when they moved from the forest to the savanna, which deprived them of the option of climbing trees to flee predators. This shift made it necessary for the men to actively protect the women and their babies. Only as a result of this protection were women able to give birth in shorter intervals, perhaps once every two or three years. This meant that they could produce offspring about twice as frequently as apes. I would be willing to bet that this rapid reproduction is one of the reasons why we dominate the world today, and not the apes.