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how do whales bats and dolphins use echolocation? to scare away predators, to orient themselves and to find food, to attract males, or to tell other animals of their species where they are?

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to orient themselves and to find food

User Maksim Kostromin
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to find food. echolocation is when a sound bounces off of something and they can tell what direction it came from.
User Reilstein
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