Dogmatists have one advantage: they are poor listeners.

There is little evidence that other animals judge the appropriateness of actions that do not directly affect themselves.

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.

Empathy probably started out as a mechanism to improve maternal care. Mammalian mothers who were attentive to their young's needs were more likely to rear successful offspring.

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.

Chimpanzees, typically, kiss and embrace after fights. They first make eye contact from a distance to see the mood of the others. Then they approach and kiss and embrace.

Exclusive homosexuality is not very common in nature.