Oceanographic Magazine·4 min read·medium
Sperm whales blow bubbles to sleep floating vertically
E
Eva Cahill
✦AI Summary
Researchers have discovered that sperm whales maintain a vertical sleeping position by releasing gas bubbles to regulate their buoyancy. This behavior helps them nap efficiently while avoiding the energy costs of deep-sea diving.
They are the only whales that choose to sleep upright, but until now, scientists haven’t understood how it was possible due to their exceptionally buoyant heads.
scienceenvironment
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