Apollo was the first wolf to join the Northern Olympus pack. On the verge of starvation and heavily wounded Athena took him in. Honestly expecting him to die out and for her to move on, but after he survived the first night hope wasnt a lodt cause. Then after the first night he survived the second. Then after the second he survived the third. Eventually he was basically as good as new. He was forever loyal to Athena and thankful for her generous help.