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Sharks Hear Distant Sounds Miles Away
9 Oct
Summary
- Sharks detect low-frequency sounds from 62 meters away.
- Directional movements suggest sharks locate sound origins.
- Wild shark studies offer realistic environmental responses.
Wild blacktip sharks have demonstrated a remarkable ability to detect low-frequency underwater sounds from significant distances. Research indicates these sharks can hear sounds originating at least 62 meters away, with some reactions occurring as far as 74 meters.
Scientists observed that upon detecting these sounds, the sharks exhibited distinct directional movements, turning sharply and swimming away from the source. This behavior strongly suggests they can determine the sound's origin, not just perceive its presence.
This study, which involved playing controlled low-frequency sounds to free-swimming sharks off southeastern Florida, utilized drones to monitor their responses without interference. The sharks did not react to high-frequency sounds, emphasizing their sensitivity to specific sound ranges.
The findings highlight the importance of sound in the underwater environment, where visibility can be poor. For sharks, detecting sounds early could provide vital information about potential prey or threats, allowing them more time to investigate or evade danger.
Unlike previous studies in controlled tank environments, this research observed sharks in their natural habitat. This approach offers a more accurate representation of how sharks navigate and interact with their acoustic surroundings, contributing valuable insights into their sensory capabilities.
