My subscription to Nature is long gone, and it'll be some time before I get up to my library to use the portal there. Any chance you can give a summary?

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\"Why is it, Master, that ascetics fight with ascetics?\"

\"It is, brahmin, because of attachment to views, adherence to views, fixation on views, addiction to views, obsession with views, holding firmly to views that ascetics fight with ascetics.\"

Epigenetic changes to DNA by methylation of the DNA is an epigenetic mechanism to provide for rapid adaptation that is then inherited. This is research in bacteria.:-http://www.ncbi.nlm.nih.gov/pubmed/16959970