River Dolphin Sonar Is Well-Suited For Life In The Busy Amazon

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The echolocation clicks of toothy whales and dolphins typically encounter few obstacles at sea. Amazon river dolphins, on the other hand, live in shallow channels and flooded forests alongside dense vegetation – confined environments where sonar operations might result in high levels of clutter and reverberation. According to new findings published in the Journal of Experimental Biology, these dolphins rely on a high-frequency, short-range biosonar.