Sperm whale 🐋 #whale #oceanlife #LearnOnTikTok #Science

- Why can't you dive 2,000 meters into the ocean, but a sperm whale can? That's because of four biological advantages you simply don't have. First, collapsible lungs. When pressure increases, your lungs fight it. There's don't. A sperm whale's lungs safely collapse on purpose, pushing air away from fragile areas and preventing nitrogen from entering the bloodstream. Second, oxygen stored in the muscles. You mostly rely on the air in your lungs. They don't. Sperm whales pack oxygen into their blood and muscles using massive amounts of hemoglobin and myoglobin. Their entire body becomes an oxygen tank. Third, a flexible rib cage. Your chest is rigid. There's bends under pressure, compressing safely as they descend and expanding again when they rise. And the last one, the real advantage. They slow their heart down. From around 60 beats per minute to as low as 10. That means less oxygen burned, less energy wasted, more time in the deep. So while you'd struggle just getting a few dozen meters down, they're casually dropping 2,000 meters into total darkness, like it's just another dive.