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Outline and evaluate two different signalling systems used by non-human animals. Animals used several different methods to communicate with each other. Signals are used by animals for a variety of reason, some of these being danger or the location of food. Among the methods used are visual communication and chemical communication.. Visual signals are performed in many different ways for a variety of reasons. It allows information about a variety of topics to be transmitted quickly and easily. One main reason for this use of signalling is courtship displays, where individuals are able to display themselves on order to attract a mate. This allows the opposite sex to them assess the qualities of this individual, according to the quality of the visual display. This is an effective method of communication as it allows the use of colour among many things, and can also be coupled with the use of auditory signalling. Not...

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