World's deepest cave is deeper than 7 Eiffel Towers and took 100 men to retrieve body
With a depth of around 2,199 metres, a cave in Georgia is so deep that nearly seven Eiffel Towers could fit inside.
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Golden scaleless cave fish discovered in China shows evolution in action
Some golden-line fish have lost their scales and eyes as part of adaptations to cave life — there's no point having eyes if it's too dark to see anything. The newfound species, which the ...