Scientists have identified that mysterious, metallic sound coming from the Mariana Trench - According to a new study, the eerie 3.5-second recording that was picked up by an autonomous vehicle deep in the Mariana Trench is a new type of baleen whale call that no one has ever heard before • /r/worldnews

Scientists have identified that mysterious, metallic sound coming from the Mariana Trench - According to a new study, the eerie 3.5-second recording that was picked up by an autonomous vehicle deep in the Mariana Trench is a new type of baleen whale call that no one has ever heard before • /r/worldnews

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