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Caught between police and gangs, Rio de Janeiro residents are dying in the line of fire
In Rio de Janeiro, where murder rates this year have soared to their highest levels in a decade, vio...
How our environment can induce allergies even before we’re born
Is this the worst Northern Hemisphere allergy season yet? For many people – both those who’ve suffer...
How we used cameras in the sky to track invasive plant species
Pretty pink, orange and white flowers of the shrub Lantana camaraor wild sage, are common in ornamen...