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Bacteria have been programmed like a computer to produce colored patterns by communicating with each other.

The bacteria, E. coli, were programmed to emit red or green fluorescent light in response to signals from other E. coli.

In one experiment, they glowed green in high concentrations of a signal chemical and red in low, forming a bull’s-eye pattern in a Petri dish.

“We are really moving beyond the ability to program individual cells to programming a large collection?millions or billions?of cells to do interesting things,” says researcher Ron Weiss of Princeton University.

BetterHumans

Researchers at UCSD and UC Irvine have captured on video for the first time chemical signals that traverse human cells in response to tiny mechanical jabs, like waves spreading from pebbles tossed into a pond. The scientists released the videos and technical details that explain how the visualization effect was created as part of a paper published in the April 21 issue of Nature.

Science Daily

Mice have been placed in a state of near suspended animation, raising the possibility that hibernation could one day be induced in humans.

In this case, suspended animation means the reversible cessation of all visible life processes in an organism.

BBC News