Top of the food chain

Daddy: Spiders eat flies, and do you know who eats spiders?
Ellie: Who?
Daddy: Birds eat spiders.
Ellie: Who eats a bird?
Daddy: Cats eat birds.
Ellie: But who eats a cat?
Daddy: Wolves eat cats.
Ellie: But who eats the wolves?
Addie: I DO!!!

Repeat with different food chains for about 10 minutes. Without fail, Addie is apparently at the top of the food chain. They left that part out of the biology books I studied.