The interval between echolocation clicks sperm whales produce can indicate the age and sex of individual whales. These sounds can also reveal whether the whales are actively hunting or have successfully captured their meal.
Researchers learned that these animals are more present in Monterey Bay in the winter, providing strong evidence that sperm whales migrate seasonally in the Northeast Pacific Ocean.
What we're hearing actually is a really unique seasonal migration in this top predator of the deep sea, said William Oestreich, who led the research.
These findings reinforce the idea that deep-sea environments experience seasonal changes, with top predators like sperm whales playing a critical role in maintaining the health of oceanic ecosystems.
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