For years, scientists have been making underwater recordings of orcas, also called killer whales. Orcas spend much of their time in an icy, dark area of the world, the Arctic, where they can be difficult to find, and scientists were hoping the recordings might help them better track and study the marine mammals. Recently scientists started listening to the recordings, which span thousands of hours. Listen to hear the sounds of killer whale calls, and learn what the recordings are teaching researchers about orca behavior and habitat.
Story Length: 2:19
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