What is Animal communication?

For linguistics, the interest of animal communication systems lies in their similarities to and differences from human language:

There becomes possibility for error within communication between animals when certain circumstances apply. These circumstances could include distance between the two communicating subjects, as well as the complexity of the signal that is being communicated to the "listener" of the situation. It may not always be clear to the "listener" where the location of the communication is coming from, as the "singer" can sometimes deceive them and create more error.