The role of inequity in society is grossly underestimated. Inequity is not good for your health, basically.

If both parties have a stake in the other, the chances of them killing each other are going to be reduced.

Religion may have become a codification of morality, and it may fortify it, but it's not the origin of it.

Male bonobos really don't fit the human male ideal.

We start out postulating sharp boundaries, such as between humans and apes, or between apes and monkeys, but are in fact dealing with sand castles that lose much of their structure when the sea of knowledge washes over them. They turn into hills, leveled ever more, until we are back to where evolutionary theory always leads us: a gently sloping beach.

Unlike the primate hand, the elephant's grasping organ is also its nose. Elephants use their trunks not only to reach food but also to sniff and touch it. With their unparalleled sense of smell, the animals know exactly what they are going for. Vision is secondary.

Personally, I think it is possible to build a society that is moral on a nonreligious basis, but the jury is still out on that.