Mushu is a whale who is owned by the Whale Biologist and people are allowed to swim with him although they are not allowed to feed him. He also does shows for an audience. He once ate Amy's watch which Kif later obtained again by getting Leela to hide rotten fish under her swimsuit and feeding it to Mushu. During his next show, Mushu vomited the watch out along with ambergris.
Three Hundred Big Boys (4ACV16)