14 hr ago · Thursday, July 23, 2026
Researchers tag 42 sleeping giants in Arctic Circle – and make breathtaking discovery
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Researchers tag 42 sleeping giants in Arctic Circle – and make breathtaking discovery BBC Wildlife Magazine Sperm whales blow bubbles to achieve restful, vertical sleep Phys.org Sperm whales release bubbles to regulate buoyancy and sleep floating vertically, scientists discover S
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