1. The problem asks how the return of the bald eagle population helped the fox population recover on Santa Cruz Island. 2. When bald eagles returned to the island, they displaced the golden eagles. 3. Golden eagles were predators of the foxes, so when they left, the predation pressure on foxes decreased. 4. This allowed the fox population to increase because there were fewer predators threatening them. 5. Filling in the blanks: "Now that bald eagles **inhabit** the island again, the golden eagles left and could not **prey on** the foxes. Soon, there were **greater numbers** of foxes on the island." 6. This shows a cause-effect relationship where the return of one predator (bald eagle) indirectly benefits another species (fox) by removing a more dangerous predator (golden eagle).