ZME Science·3 min read·medium
Sperm Whales Use Bubbles as Ballast To Do Their Bizarre Vertical Rest
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Mihai Andrei
✦AI Summary
Researchers have discovered that sperm whales use controlled exhalations of bubbles to manage their buoyancy during vertical 'drift-dives' while sleeping. This behavior helps the massive mammals remain submerged in a motionless, pillar-like state.
In one of the ocean’s strangest sleep routines, sperm whales can hang almost motionless in the water like giant living pillars. Now, a new study suggests that the giants maintain this improbable pose by using a surprising trick: bubbles.
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