Slashdot linked up this fascinating summary of a new development in cancer research:

Scientists have discovered how cancer spreads from a primary site to other places in the body in a finding that could open doors for new ways of treating and preventing advanced disease.

Instead of a cell just breaking off from a tumor and traveling through the bloodstream to another organ where it forms a secondary tumour, or metastasis, researchers in the United States have shown that the cancer sends out envoys to prepare the new site.

The level of sophistication in this technique is to me staggering, considering that these are single-celled organisms we're talking about. All this time I thought it was viruses which were the clever evildoers in the microscopic jungle...