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Video transcription

My name is Maddalena Bearzi. I'm President of Ocean Conservation Society, a nonprofit dedicated to the study of marine mammals and the protection of the marine environment. Today, we will talk about dolphin ultrasound. Sound is extremely important in the marine environment. Dolphins use whistle to communicate. They use clicks to echolocate and find food. Biosonar works in a way similar to our Navy sonar. They emit sound from their inner ear that travel through the melon, hit an object and they receive the echo back through their lower jaw and that's how they can detect a smaller object to a big distance. My name is Maddalena Bearzi. I'm president of Ocean Conservation Society, and today we talk about dolphin ultrasound.