Passage Summary: Wildlife officers kicked coyotes off an island to save some birds the coyotes were eating, but as soon as the coyotes were gone, the birds died out even faster.

Reasoning: Coyotes were removed from an island to protect a bird species they hunted, but instead of recovering, the bird population vanished entirely within two years.

Analysis: We are faced with a biological irony: removing a predator intended to save a species actually accelerated that species' extinction. To solve this paradox, we need to find a hidden variable that the coyotes were inadvertently managing. Look for an answer that introduces a third party, like a different predator or a disease, that the coyotes were keeping at bay.