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Blue Whales' Songs Plummet 40% Amid Ocean Crisis

8/6/2025

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Summary

Story summary

Blue whales along California's coast have dramatically quieted, cutting their songs by nearly 40% in just six years. This alarming change is linked to marine heatwaves, dubbed The Blob, which have decimated krill populations—their main food source. Researchers caution that this silence is a troubling indicator of a broader ocean health crisis, threatening ecosystems worldwide.

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Story summary

Blue whales along California's coast have dramatically quieted, cutting their songs by nearly 40% in just six years. This alarming change is linked to marine heatwaves, dubbed The Blob, which have decimated krill populations—their main food source. Researchers caution that this silence is a troubling indicator of a broader ocean health crisis, threatening ecosystems worldwide.