These 9 animals have evolved incredible ways to communicate without making a sound using body movements vibrations scent signals bioluminescence and even color changes to warn attract or ...

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Listen to the sharks crackle: More than 1,000 fish species are known to produce sounds, usually by vibrating their swim bladder, a gas-filled organ that helps the animals stay buoyant and can also ...

Copyright © 2025 BBC. The BBC is not responsible for the content of external sites. Read about our approach to external linking.