New research has found that humpback whales sing together in a joint operation to hunt out sand lance fish that hide beneath the ocean floor.
How whales hunt for food at night was once a mystery for many scientists. However, whales off the coast of Massachusetts were recently tagged with recording devices so scientists could learn more about this phenomenon.
According to the study, scientists found that the whales sing together in a bid to track down food, namely sand lance, which are then easily scooped up by the humpbacks and eaten.
This video shows how the whales make tick-tock sounds in the pitch-black water to flush out fish that hide beneath the ocean floor.
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The research found that while the whales make noises when hunting together at night, they are silent when hunting alone. The reason for this difference in tactics is unknown.
It is believed that the clock-like sounds act as a dinner bell, calling to other whales that may be nearby during late-night feedings.