Explain how controllers interact with services in an AngularJS application to handle data retrieval and manipulation.

In AngularJS, controllers interact with services for data retrieval and manipulation through dependency injection. Dependency injection ensures that services are injected into controllers, making it easy to access their methods and properties. This promotes code modularity and testability. Utilizing $http service within a service is a common practice for handling data retrieval and manipulation in AngularJS applications. Understanding this interaction is fundamental for building robust and scalable AngularJS applications.