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The Best TV Shows finales (Biggest positive difference between average season ratings and finale)
(files.catbox.moe)
Interactive version: https://public.tableau.com/app/profile/bo.mccready8742/viz/TheBestTVShowFinalesDataPlusTV/BestTVShowFinales
Source: https://reddit.com/comments/1f42jj3
Feel free to have a look at !showsandmovies@lemm.ee for a shows oriented community
Yeah, it was... interesting. There was also that episode where they turned into birds that had a different animation style, or was that the same one? Cannot remember. Recently rewatched the entire show, it still is awesome.
There were several guest animated episodes including the one you mentioned which is called "the food chain*