A medicinal plant has evolved camouflage in heavily picked areas

Fritillaria plants should be simple to spot. The usually bright green plants often stand alone amid the jumbled scree that tops the Himalayan and Hengduan mountains in southwestern China — easy pickings for traditional Chinese medicine herbalists, who’ve ground the bulbs of wild Fritillaria into a popular cough-treating powder for more than 2,000 years. The […]

Scientists find medieval plague outbreaks picked up speed over 300 years — ScienceDaily

McMaster University researchers who analyzed thousands of documents covering a 300-year span of plague outbreaks in London, England, have estimated that the disease spread four times faster in the 17th century than it had in the 14th century. The findings, published today in the Proceedings of the National Academy of Sciences, show a striking acceleration […]