At three hundred feet, we are profoundly changed. The pressure at these depths is nine times that of the surface. The organs collapse. The heart beats at a quarter of its normal rate, slower than the rate of a person in a coma. Senses disappear. The brain enters a dream state. At six hundred feet down, the ocean’s pressure—some eighteen times that

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El gran tiburón blanco existe desde el Mioceno. Los fósiles más antiguos conocidos del tiburón blanco datan de hace unos dieciséis millones de años aproximadamente

The deep sea, covering approximately 65% of Earth's surface, has long been considered a biological desert. In this extreme environment—particularly in the …