Answer:
auditory communication
(could be possibly visual communication )
Explanation:
animals communicate with sounds and gestures
there was no selection but based of my knowledge the biggest form of animal communication was either Visual Communication. and auditory communication, based on how animals usually are communicating within their own species id have to say that auditory communication is more common.
1) Visual communication for animals comes in two forms: badges and displays.
2) Barking, growling, hissing and purring all are considered animal auditory communication.
