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Name the main idea and one detail from the following passage:
Most animals like company, but, it seems, they also like to be unique. There are special names for groups of many different animals. For example, a group of fish is a school. You wouldn't call a group of ants a school, but you could call them a colony. A group of hens is not a colony, however; it is a brood. Then, there is a pod of dolphins, a string of ponies, and a gaggle of geese.
Main Idea: What is the different names of groups of animals?
Detail: ...