https://kvalifood.com/tags/sea-urchin/ Recent content in Sea-Urchin on Kvalifood Hugo en-us Thu, 09 Apr 2026 00:00:00 +0000 https://kvalifood.com/wiki/shellfish-mollusks/ Thu, 09 Apr 2026 00:00:00 +0100 https://kvalifood.com/wiki/shellfish-mollusks/ <h1 id="shellfish--mollusks">Shellfish — Mollusks</h1> <img src="https://kvalifood.com/wiki/shellfish-mollusks/shellfish-mollusks_hu_d921617cbb3d79b7.webp" alt="" loading="lazy"> <p>Mollusks are the strangest creatures humans eat, and among the most delicious. Shell mounds document human consumption 300,000+ years back. The phylum spans 100,000 species — double the number of all vertebrates — from millimeter snails to giant squid. All share three body parts combined in vastly different ways: a muscular foot, a complex organ assembly, and a versatile mantle that secretes shell material.</p> <h2 id="the-adductor-muscle-system">The Adductor Muscle System</h2> <p>Bivalves (clams, mussels, oysters, scallops) open their shells with a spring-like hinge ligament and close them with adductor muscles. These muscles have two functionally different portions:</p>