Seals can hold their breath for well over an hour, even baby seals already outperform the human world record, how come that’s the case?
In: Biology
Certain mammals can stay underwater longer than humans due to physiological adaptations that optimize oxygen storage and usage. They have higher concentrations of myoglobin in their muscles, larger blood volumes, and greater oxygen-carrying capacity, enabling efficient oxygen use. These animals can slow their heart rate (bradycardia) to reduce oxygen consumption and redirect blood to vital organs. Additionally, their flexible lungs and rib cages help withstand pressure and reduce nitrogen absorption, while anaerobic metabolism and large spleens provide extra oxygen reserves. Behavioral adaptations, such as gliding to conserve energy, also contribute to their ability to stay submerged for extended periods.
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