Every second, millions of cells in your body divide in two. In the space of an hour, they duplicate their DNA and grow a web ...
As organisms develop from embryos, groups of cells migrate and reshape themselves to form all manner of complex tissues.
Morning Overview on MSN
Scientists uncover previously unknown life forms hiding inside the human body
The human body has always been crowded with microscopic passengers, from bacteria to viruses and fungi. Over the past two ...
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