ScienceSilicon Canalsabout 1 hour ago
Sperm Whales Sleep Vertically in Silent Pods
8 min read
Sperm whales sleep vertically near the surface, drifting head-up in silent clusters for ten to fifteen minutes. The behavior, first filmed in the late 2000s, involves releasing gas bubbles to control buoyancy. Recent tagging off Norway recorded up to 36 bubble releases per nap.
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