Are you wondering whether you need a bed fit for a queen—or a king? In the king-size vs. queen-size mattress debate, there’s more to consider than mere dimensions. Whether you’re a single person or a ...

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For many ant species, caste determines destiny. Queens grow large, sprout wings, and lay eggs; workers stay small, wingless, and industrious. But how these castes develop—and how a young ant’s future ...