Nope.So in the period right before they lay eggs, female penguins eat a lot of mollusks.The clam and mussel shells in their stomachs slowly leach calcium which is then used to form eggshells.

• 不，在它们要产蛋前，雌性的企鹅会吃很多软体动物，蛤和蚌类的壳会在它们的胃里慢慢被消化，这些就是用来产生蛋壳的。