For example, sea stars prey on a variety of bivalve mollusks and prevent these bivalves from monopolizing habitats on the sea floor.
例如，海星捕食各种双壳类软体动物，防止这些双壳类动物独占海底的栖息地。
Somewhat heart-shaped sand-burrowing bivalve mollusks.
稍有心脏状掘沙的双壳类软体动物。
Somewhat heart-shaped sand-burrowing bivalve mollusks.
稍有心脏状掘沙的双壳类软体动物。
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