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Scientists studying deep-ocean hydrothermal vents have discovered that some life forms can survive the extreme pressure change from ocean-floor to sea surface.
A team of researchers has found evidence of photosynthesis taking place deep within the Pacific Ocean. The team found a bacterium that is the first photosynthetic organism that doesn't live off sunlight but from the dim light coming from hydrothermal vents nearly 2,400 meters (7,875 feet) deep in the ocean.
- To swell, as grain or wood with water.