Which identification method is NOT typical for sterilized animals?

The identification method labeled as a license plate is not typical for sterilized animals. Unlike the other methods, which are direct forms of animal identification, a license plate is associated with vehicles and not animals.

Microchipping, tattooing, and ear notching are all commonly used methods for identifying animals, especially those that are sterilized, as they allow for permanent identification that can be easily traced back to the owner. These methods play a crucial role in helping to reunite lost pets with their owners and in the management of animal populations.

In contrast, the idea of a license plate implies a registration system for vehicles, which is unrelated to animal identification practices. Thus, it stands out as the method that does not fit within the context of typical identification strategies for animals, particularly sterilized ones.