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Sperm whales use bubbles to sleep vertically

Researchers are studying sperm whale sleep, which remains poorly understood.

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They observed these cetaceans napping vertically, surrounded by bubbles.

The exact mechanism and duration of their sleep are still unclear.

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#cachalots #sommeil #cétacés #recherche scientifique #comportement animal #bulles

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Auto-synthesis from 1 media source · identified on September 1, 2026

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