ScienceDaily: Trees that can tolerate soil pollution are also better at defending themselves against pests and pathogens. "It looks like the very act of tolerating chemical pollution may give trees an advantage from biological invasion," says Dr Frederic E. Pitre of the University of Montreal and one of the researchers behind the discovery. Unexpectedly, whilst studying the presence of genetic information (RNA) from fungi and bacteria in the trees, the researchers found evidence of a very large amount of RNA...