Discuss the communication behaviour found in nonchordates.

Animals may not be able to speak in master language techniques, but they're certainly able to communicate with one another; their survival depends on it. Animals generally communicate using four methods: visual, auditory, tactile and chemical. Some species rely more on one form of communication over another; however, they all various methods to show affection, ward off threats or attract a mate.

Visual Communication

Visual communication for animals comes in two forms: badges and displays. Badges, the color and shape of the animal, are structural adaptations, such as the bright yellow feathers of the male American goldfinch. The bright colors tell a prospective mate that the male is a suitable choice. Displays are the behaviors animals exhibit, such as the glow of a firefly to attract mates or when a dog wags his tail to let you know he's happy.

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