Final answer:
Animal communication encompasses a range of signals, such as pheromones, sound, and visual displays, crucial for conveying information within a species.
Explanation:
Animal communication involves various forms of signals within a species, including chemical (pheromones), aural (sound), visual (courtship and aggressive displays), and tactile (touch). These signals play vital roles in conveying information about territory, food sources, predators, and mating opportunities among animals. For example, the red region in a three-spined stickleback signals aggression in males and mating in females.
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