The Snow Bow Meow is a reward for the discovery achievement Chill Bill, which involves completing the chillberg environmental quests Glacial Digestion The Snow Bow Meow, Grenade Fishing and Pumbrrr as well as the repeatable quest A Roaring Trade in Taroudium. To get the Roaring Trade in Taroudium quest, you need to talk to Styffen Chillberg (Clan Member)
When pets are healed, they do not gain XP. Healing items do not count as food either, so you always need to feed your pets after healing them (if you haven't fed them yet). You can feed them multiple healing items, until they're max health. Pets can be healed by feeding them:
A pet needs to be fed at least once every 72 hours. If 3 days pass without feeding, if you give it unsuited food or if you lose a battle, your pet loses 1 HP.