Grey camouflage ‘better than zebra stripes’

Credit: Pixabay/CC0 Public Domain Dull, featureless camouflage provides better protection from predators than zebra stripes, according to a new study. Biologists explaining the existence of such stripes have proposed the “motion dazzle hypothesis”, which suggests that high-contrast patterns can make it difficult for predators to track a moving target. University of Exeter scientists tested this […]

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 […]

Asymmetric optical camouflage: Tuneable reflective color accompanied by optical Janus effect

IMAGE: a, Conceptual illustration of direction-sensitive asymmetric optical camouflage by tuneable optical Janus effect b, SEM images of the nanostructured Au film and CYTOP nanopillars. Scale bars, 200 nm. c, Photographs… view more  Credit: Taehyun Kim, Eui-Sang Yu, Young-Gyu Bae, Jongsu Lee, In Soo Kim, Seok Chung, Seung-Yeol Lee, and Yong-Sang Ryu In modern optics, a […]