请以中英双语格式，分别包含三个句子，讲述一个有趣的事实。
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地球上约90%的海洋深度尚未被探索过。
约90% of the ocean's depth remains unexplored.
深海生物适应了极端的压力和黑暗环境。
Deep-sea creatures have adapted to extreme pressures and darkness.
有些深海鱼类能够发出生物荧光来吸引猎物或配偶。
Some deep-sea fish can bioluminesce to attract prey or mates.
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