This text means that this earth belongs to all creatures living on this earth.
Explanation:
In this text ''Making a Difference: It's Our World, Too!" the authors says that this world just not belong to humans only but to other creatures as well. We humans only about our lives and goals and don't think about other creatures. We destroying their habitats and their environment in order to gain benefits from it. We don't even think about these creatures who has also equal right on this planet earth and its resources.
Piggy gets really angry because all he wants to do is get off the island and be rescued, but now he can’t all because of Jack and the rest of his gang (the hunters).