Which of the following is NOT one of the four key features a map must contain?

A map traditionally must include a title, legend, and orientation to effectively communicate the information it represents.

The title provides context for what the map is depicting, allowing users to understand the subject matter quickly. The legend explains the symbols and colors used on the map, facilitating easier interpretation of the data. Orientation, often indicated by a north arrow or compass rose, helps the user understand the direction in which the map is oriented, which is crucial for navigation and spatial understanding.

Animation, on the other hand, is not a fundamental feature required for a map. While animated maps can enhance visualization and provide dynamic data presentation, especially in digital formats, they are not essential for the static representation of geographic information that defines a traditional map. Thus, it is distinct from the key features necessary for all maps, making it the correct answer to the question.