We estimate that more than20 million species may harbor Wolbachia, suggesting that scientists have so far studied merely the tip of a huge and important iceberg.

• 我们估计沃巴赫菌寄生的物种也许超过2000万个，因此科学家到目前为止，触及的只不过是冰山的尖端，巨大而重要的冰山本体仍隐没不彰。