: To keep her from leaving, Cartman manipulates Heidi into eating "Beyond KFC," which is actually just more fried chicken. She begins to physically resemble him.
: Government officials fear that the intelligent tardigrades could be used for advanced military research or surveillance. [S21E8] Moss Piglets
Heidi’s character arc takes a dark turn as her relationship with Cartman continues to corrode her personality. : To keep her from leaving, Cartman manipulates
: Nathan plans to win by using "Moss Piglets" (tardigrades) to create a superior life form. The Goal : He wants to impress girls and humiliate Jimmy. : To keep her from leaving
Nathan and Mimsy, recurring rivals of Jimmy, enter the South Park Elementary Special Ed Science Fair.