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The beloved animal has shaped human history over millennia, just as people have influenced its evolution — but only recently have scientists discovered exactly when and where it went from wild to tame
How dangerous is it? Where did it come from? H5N1 influenza’s origins stretch back to the 1990s, and key events paved the way for the outbreak we’re seeing today.
Scientists are finding that microscopic membranous bubbles called extracellular vesicles transmit messages from cells and do big jobs in many areas of biology — plus they might be useful for therapies.
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