How do you think dolphins find food in dark water, especially if what they are looking for does not make any noise? What other
sense might they use to "see” without using their eyesight?

Dolphins use the sense (sound) to find food in dark water.

Explanation: Echolocation allows dolphins to “see" by interpreting the echoes of sound waves that bounce off of objects near them in the water. To echolocate objects nearby, dolphins produce high-frequency clicks. ... This information is critical for dolphins to find food and navigate in dark or murky waters.

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