Cyanobacteria are really the movers and shakers of the Earth

Scientists have discovered skeletons in the cyanobacterial closet. A never-before-seen species of cyanobacterium loads its cells with little bonelike lumps that may act as ballast, helping to anchor the beastie in its home waters of a Mexican lake. The discovery, described in the April 27 Science, is the first report of such a microbe creating calcified structures inside its cells, rather than externally.

For more information: http://www.sciencenews.org/view/generic/id/340281/description/Bony_bacteria