Fur Seals’ Hearts Suddenly Spike Hours After Returning to Land

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Fur seals may look relaxed on shore, but their hearts reveal a hidden battle still underway after deep dives. Diving places enormous physical stress on marine mammals. During long and deep dives, animals can switch to ‘anaerobic’ (oxygen-less) metabolism in parts of the body outside the heart and brain, which leads to a buildup of [...] Explore the content:


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