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Grapefruit Graphics 2019 - Leaderboard

A spectrogram, a visual representation of sound, shows these false killer whale whistles as green, oscillating lines. This study measured 50 characteristics, including frequency start and end, frequency range, and whistle duration.

© NOAA Fisheries
A spectrogram, a visual representation of sound, shows these false killer whale whistles as green, oscillating lines. This study measured 50 characteristics, including frequency start and end, frequency range, and whistle duration. photo copyright NOAA Fisheries taken at
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