Like a Sudoku puzzle with letters, each Unolingo puzzle is a 10x10 crossword without clues
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Formed after volcanic activity, the underground caves periodically hosted early humans and their livestock in Saudi Arabia, facilitating cultural exchange
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They expect to haul off ten metric tons of garbage and up to five bodies from the world's tallest peak
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While studying brain scans to search for patterns that correlated with psychopathic behavior, James Fallon found that his own brain fit the profile
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The 27 vertebrae discovered in India suggest the enormous creature, dubbed Vasuki indicus, was between 36 and 50 feet long
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In an event that occurs only once every 80 years, a distant remnant of a star will grow much brighter, briefly becoming visible to Earth
