Oola was the very first All-Purpose Pet, created by (drumroll please) Mentor First himself. She was named by Fargo Wells, who released her from her leather shell which had previously been used as Ziphyzggtmtizm’s tail rest. After inevitably losing her in time travel and being reunited, Fargo disputed ownership with Mentor First and ended up losing his faithful pet, who was torn between her two owners.
Oola finally laid an egg, which she gave to Fargo in gratitude, who in turn gave it to his brother Jeff. Her daughter was named Oola Two.