Question

मछली खतरे की चेतावनी एक दूसरे को कैसे देती है​

Answer 1

Answer:

Fish warn each other about danger by releasing chemicals into the water as a signal.Fish signaled most when in the presence of familiar fish, but signaled far less or not at all when in the presence of strangers, or when on their own.The signals provoked a 'fright response' in fish they knew, including freezing, dashing about and then shoaling tightly together. Fish use this behavior to defend themselves against predators.