Work begins on Calif. bullet train, locals angry (Update)

Trucks loaded with tomatoes, milk and almonds clog the two main highways that bisect California's farm heartland, carrying goods to millions along the Pacific Coast and beyond. This dusty stretch of land is the starting point ...

'Random' cell movement is directed from within

Cell biologists at The Johns Hopkins University have teased apart two integral components of the machinery that causes cells to move. Their discovery shows that cellular projections, which act as hands to help a cell "crawl," ...

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