What does Argus symbolize? What detail in the passage shows Argus's symbolic meaning?

Argos is a symbol of loyalty. Argos is Odysseus's old dog. When Odysseus returned from his 10 years of wandering in the ocean, Argos was the first to recognize his master. Argos does not have that activeness when he was a pup. He was unable to move from his place. However, he wagged his tail as a sign that he has recognized his master even after 10 years.