we have, besides a dog, cats, and they all know their individual names very clearly, repeatably, demonstrably. they also seem to know the names of one another, but of course cooperation is more eager in dogs than in cats, so harder to demonstrate that.
> "Perhaps" even a name for itself
No perhaps needed, dogs will respond to a name and know it refers to them. You might be interested in reading this study about dogs doing fMRI while responding to new and old words: https://www.frontiersin.org/journals/neuroscience/articles/1...