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Sperm Whales Use Bubble-Blowing to Sleep Vertically in the Ocean

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New research from the University of St Andrews has shed light on how sperm whales achieve restful sleep in the open ocean. The marine mammals blow bubbles as part of a mechanism that allows them to float vertically near the water's surface while sleeping. This unusual posture, often observed in groups, enables the whales to rest without sinking or needing to actively swim. Scientists believe this behavior is key to how sperm whales manage their sleep cycles despite living in a demanding aquatic environment.

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Sperm Whales Use Bubble-Blowing to Sleep Vertically in the Ocean · ShortSingh