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Biology

Physiological Limits of Diving in Beaked Whales

Quick fact

Cuvier's beaked whales have been recorded diving to depths of nearly 3,000 meters and staying submerged for over two hours, making them the deepest and longest-diving mammals on record, far exceeding any human ability.

Why this is interesting

Imagine holding your breath for over an hour while descending a mile beneath the waves—beaked whales do this routinely. How do they manage such extreme feats, and what ultimately sets the limit?