Petting Zoo is a petting zoo owned by Sprott in Gravity Falls. The petting zoo is home to many animals, such as sheep and goats, as well as Octavia, the eight-legged cow. The toxic waste from nearby Northwest Mud Flaps causes spontaneous mutations in some of the animals. Emmit and D'Shawn are employees there.
When Stan, Dipper, Mabel, Soos, and Wendy visit the petting zoo, Mabel falls in love with Octavia. Sprott expresses his plans to eat Octavia soon, prompting Mabel to convince Stan and the others to save her. Using Soos' pick-up truck, they rescue Octavia and set her free.
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