Lemonick, Michael D. (2005) Honor among beasts TIME, 54-56.

Most warm blooded creatures appear to have an honor system that helps them survive. Much of the aggression among say dogs is playful. If one violates the other, then it appears remorseful. Much of the whirlwind of aggression establishes stratification and territory, but beyond that the animal is in the wrong among other same creatures.

Do dogs and related have morals or ethics? That may be a stretch. However, it is possible.