Dynamic polymorphism is a feature of some programming languages that allows for variables, functions, and objects to be dynamically bound to different implementations at runtime. This can be useful for creating software that is more extensible and flexible, as well as for libraries that need to support a variety of different types. In some cases, dynamic polymorphism can also lead to more efficient code execution.  For example, if a function needs to be called on an object that may have multiple subtypes, the function can be dynamically bound to the appropriate implementation based on the type of the object at runtime. This avoids the need to check the object's type before calling the function, which can save time and resources.