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Genes & Cells

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fetal mummy

MUMMIFIED  The 6-inch-long body of a fetal mummy known as Ata, who scientists now say was a female, was preserved due to the arid conditions of Chile’s Atacama Desert.


SUPERSIZE ME   The more scientists look, the more giant viruses pop up. The viral behemoths, which largely infect amoebas, may be common worldwide. 


TAIL TATS  When researchers tattooed mouse tails, the only cells found with ink inside were macrophages. The tattoo appeared the same before (left) and after (right) ink-holding macrophages were killed, because it was recaptured by new macrophages.

Genes & Cells

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