Killer yeasts secrete toxic proteins. Known as killer toxins, the proteins can eliminate susceptible cells within their own species or...

Pathogens of food include Bacillus cereus , Salmonella typhimurium , Aeromonas hydrophila , and Pseudomonas fragi . Each of these...

Lunar caustic ( lapis infernalis ), Höllenstein (hellstone) or silver nitrate ( argentinium nitrium ) is esteemed by alchemists of the...

The Almadén Mines in central Spain have an infamous past driven by profit and greed. The deadly history of ancient Almadén revolves...

Sulfuric acid (H₂SO₄) is one of the most important chemicals in the world, with many uses from car battery production to fertilizer...

Holly, yew and mistletoe, the most cheerful and celebrated of seasonal plants, are also the most poisonous. These three toxic beauties...