Read the following article.

It's not just humans that let others know they have 'crossed a line'!
Research has been carried out using a computer that is programmed to recognise the sounds made by bats. They have discovered that more than 60% of bat communication is an argument. Bats argue about four things: who gets to eat what, who gets to sleep where, invasion of personal space and unwanted attempts to mate.

Outline one function of animal communication.
Refer to the article to support your answer.

Animal communication serves several key functions, as proposed by researchers like Von Frisch. These include: - **Survival**: Warning others of predators or communicating about food sources. - **Reproduction**: Attracting a mate through calls, displays, or scents. - **Territory**: Marking and defending a territory from rivals. - **Food**: Indicating the location and type of food. The article provides clear examples of these functions. Arguing over 'who gets to eat what' relates to food and survival. Arguing over 'who gets to sleep where' relates to territory. 'Unwanted attempts to mate' relates to reproduction.