chalk brood

例句：

1. 1. The chalk brood is a fascinating creature that feeds on calcium carbonate.
   石灰蝇是一种令人着迷的生物，它以碳酸钙为食。
2. 2. The chalk brood has been observed to exhibit unique behaviors during its development.
   观察到石灰蝇在其发育过程中展现出独特的行为。
3. 3.The chalk brood is an important indicator of the health of the local ecosystem.
   石灰蝇是当地生态系统健康状况的重要指示器。