Harbor Porpoise
These small cetaceans produce extremely high-frequency clicks in the 110-150 kHz range. The sounds travel shorter distances but provide exceptional detail about nearby objects. Harbor porpoises thrive in shallow coastal waters throughout the Northern Hemisphere. They hunt small fish like herring in murky, sediment-filled environments. They create rapid sequences of clicks that allow them to track fast-moving prey. Their precision system works like underwater radar, mapping everything around them in remarkable detail.