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University of Melbourne research reveals that one in four Americans report chemical sensitivity, with nearly half this group medically diagnosed with Multiple Chemical Sensitivities (MCS), suffering health problems from exposure to common chemical products and pollutants such as insect spray, paint, cleaning supplies, fragrances and petrochemical fumes.

Researchers have shown for the first time how Golden orb web spiders (Nephila antipodiana) add a chemical to their web silk to repel invading ants.