The answer is Argos.
Despite the Odysseus disguise as an old man when he gets
home to Ithaca after ten years of struggle he was immediately recognize by his
loyal and faithful dog. When Odysseus approaches his home, Argos was lying on a
pile of cow manure and recognizes him at once as he stands and wags his tail.
They appear as the topic sentences of your paragraphs. I hope I have helped
