Irina Zhorov
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The Fraser fir is found in a lot of homes around Christmas. But its wild cousins have been in decline for almost a century because of a small invasive pest. -
More than 100,000 years ago, a bird flew from Madagascar to an island chain, where it lost the ability to fly. The seas rose and then fell and the bird flew back, only to become flightless again.
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Pittsburgh is the latest Rust Belt city hoping to lure high-skilled immigrants into its labor force by helping refugees and other immigrants land the kind of jobs they held back home.
