* Shoal: This term emphasizes the grouping of fish for feeding or spawning. It implies a close-knit cluster moving together.
* School: This term refers to the organized movement of fish in a coordinated pattern. This often involves synchronized swimming, with fish moving as a unit.
Think of it this way:
* Shoal: A group of friends hanging out at a food stand.
* School: A group of dancers performing a synchronized routine.
While both terms describe groups of fish, "school" emphasizes the coordinated, organized movement, while "shoal" focuses more on the group's purpose.
However, in common usage, both terms are often used interchangeably, especially for smaller groups of fish. So, don't worry too much about being precise!