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From
phys
Swiss researchers provide evidence that a protein in the cell nucleus responds to environmental stimuli like a kind of sensor, regulates genes accordingly and thus exchanges information with the cell memory. 
Pedro Elias's comment,
May 22, 2012 3:25 PM
I guess we DO have a 6th sense
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Plants subjected to a previous period of drought learn to deal with the stress thanks to their memories of the experience, new research has found.
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Scientists have now discovered how bacteria collectively gather information to learn about their environment and find an optimal path to growth. Articles about robotics: http://www.scoop.it/t/science-news?tag=robotics
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From
io9
Modern humans evolved about 200000 years ago — and by 20000 years ago we had taken over the world, wiping out all our would-be competitors, like Neanderthals.
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Cells trying to keep pace with constantly changing environmental conditions need to strike a fine balance between maintaining their genomic integrity and allowing enough genetic flexibility to adapt to inhospitable conditions. In their latest study, researchers at the Stowers Institute for Medical Research were able to show that under stressful conditions yeast genomes become unstable, readily acquiring or losing whole chromosomes to enable rapid adaption.
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