Why have blue whales stopped singing? The mystery worrying scientists
Briefly

Blue Whales communicate using strong vocalisations that include a variety of sounds like groans and whistles. These sounds can be heard over long distances and are essential for mating and migratory communication. Recent research indicates a decrease in singing among blue whales, which is concerning as it suggests significant changes in ocean life. Studies have documented this pattern from 2016 to 2025, with researchers highlighting the vulnerability of blue whales and their adjusted vocal behaviour in response to environmental changes.
The powerful sounds made by Blue Whales help them communicate with partners or signal the discovery of abundant food, showcasing a complex range of vocalisations.
These vocalisations can be heard as far as 10km away, lasting for half an hour and are critical for communication during mating or migration.
Recent studies indicate that blue whales have stopped singing at specific times, signaling that ocean life is fundamentally changing and making them more vulnerable.
Researchers have tracked specific blue whale vocalisations linked to feeding, noting a significant reduction in their singing over various time periods.
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