The Simpsons (1989): Season 38, Episode 2

38 - 2: Diary of a Chimpy Kid

Bart and Lisa adopt an abandoned baby chimp and clash over their surprisingly different parenting styles. When the chimp is abducted by a private wild animal zoo, the family goes on a mission to rescue him. Homer is conflicted about saving the ape, because he's convinced the chimp will tear off his face and groin.