Octopuses have hundreds of suckers, each one equipped with its own ganglion with thousands of neurons. These 'mini-brains' are interconnected, making for a widely distributed nervous system. That is why a severed octopus arm may crawl on its own and even pick up food.

Humans have a lot of pro-social tendencies.

Wild groups of chimpanzees attack their enemies like gangs. What they completely lack, precisely because of their strong territorial behavior, is a friendly relationship with their neighbors.

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

Religions have a strong binding function and a cohesive element. They emphasize the primacy of the community as opposed to the individual, and they also help set one community apart from another that doesn't share their beliefs.

The chimpanzees could tear me apart in no time. They're many times stronger than we are.

Darwin wasn't just provocative in saying that we descend from the apes - he didn't go far enough. We are apes in every way, from our long arms and tailless bodies to our habits and temperament.