For generations, the world has measured the bounty of the sea in weight alone — tons hauled, tons sold, tons consumed. A study from King Abdullah University of Science and Technology, published in Nature, quietly dismantles that assumption, revealing that shellfish and aquatic invertebrates deliver a nutritional abundance far exceeding their modest share of the catch. In reframing how we measure value from the ocean, the research invites a deeper question: not merely how much we take, but what it truly gives.