What type of animals live in shoals?

Animals that live in shoals are called schooling fish.

Here are some examples:

* Herring: One of the most famous schooling fish, often forming massive shoals.

* Sardines: Small, oily fish that form huge shoals.

* Anchovies: Similar to sardines, they form massive shoals that are important food sources.

* Tuna: While large, tuna often travel in schools, sometimes reaching hundreds of individuals.

* Mackerel: These fast-moving fish form schools for both feeding and protection.

* Pilchard: Another type of small, oily fish that forms enormous schools.

It's important to note that while the term "shoal" is often used interchangeably with "school," technically, a shoal refers to a group of fish of *any* kind, while a school specifically refers to a group of fish that are swimming together in a coordinated, synchronized manner.