Body & Brain

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cancer nanotubes

SQUEEZE PLAY  When trapped inside tight tubes, cancer cells divide unevenly. But as their membranes bulge (shown with yellow arrows), the cell division gets a little less distorted.   

a deer tick

TOUGH BITE Deer ticks are now spreading a new species of bacteria that causes Lyme disease.

man with guns

BUYBACK  In 1996, Australia initiated a program to purchase and destroy certain types of long guns, including semiautomatic weapons.  Over the next four years, the country collected more than 650,000 guns. 

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