Chaung-Tzu had a story: Two philosophers were walking home from the bar after a long evening drinking. They stopped to piss off a bridge. One of them said, “Look at the fish playing in the moonlight! How happy they are!”
The other said, “You’re not a fish so you can’t know whether the fish are happy.”
The first said, “You’re not me so you can’t know whether I know whether the fish are happy.”
It seems implausible to me that rabbits or foxes think about morality at all. But I don’t know that with any certainty, I’m not sure how they think.
Eliezer says with certainty that they do not think about morality at all. It seems implausible to me that Eliezer would know that any more than I do, but I don’t know with any certainty that he doesn’t know.
Konrad Lorenz claimed that dogs and wolves have morality. When a puppy does something wrong then a parent pushes on the back of its neck with their mouth and pins it to the ground, and lets it up when it whines appropriately.
Lorenz gave an example of an animal that mated at the wrong time. The pack leader found the male still helplessly coupled with the female, and pinned his head to the ground just like a puppy.
It doesn’t have to take language. It starts out with moral beliefs that some individuals break. I can’t think of any moral taboos that haven’t been broken, except for the extermination of the human species which hasn’t happened yet. So, moral taboos that get broken and the perps get punished for it. That’s morality.
It happens among dogs and cats and horses and probably lots of animals. It isn’t that all these behaviors are in the genes, selected genetically by natural selection over the last million generations or so. They get taught, which is much faster to develop but which also has a higher cost.