Monte Castelo excavation in progress — collecting samples. Credit: University of Exeter Amazonian farmers discovered how to manipulate wild rice so the plants could provide more food 4,000 years ago, long before Europeans colonised America, archaeologists have discovered. Experts from the UK and Brazil have found the first evidence that ancient South Americans learned how

The new device is smaller than a thumbnail with a size of 0.1 x 4mm, and could be integrated into everyday electronic devices like smartphones. Credit: CUDOS Integrated circuits, so called chips, are used in everyday electronic equipment like mobile phones and computers. It is a set of electronic circuits on one small flat piece

This photo is of a specimen of the trilobite Palaeolenus lantenoisi from the Guanshan Biota in southern Yunnan Province, China. Rarely are internal organs preserved in fossils, but this specimen shows the digestive system preserved as reddish iron oxides. The digestive system is comprised of a crop (inflated region at top of specimen), lateral glands,

Post-doctoral psy­chology researcher Maria Gen­dron trav­eled to Namibia to inves­ti­gate whether indi­vid­uals from non-Western cul­tures rec­og­nize the same emo­tions as West­erners do in facial expres­sions and vocal­iza­tions. Credit: Photo cour­tesy of Maria Gendron It’s a con­cept that had become uni­ver­sally under­stood: humans expe­ri­ence six basic emotions — happiness, sad­ness, anger, fear, dis­gust, and surprise —

The top map shows annual average lightning density at a resolution of about 10 kilometers (6 miles), as recorded by the WWLLN, from 2005 to 2016. The bottom map shows aerosol emissions from ships crossing routes in the Indian Ocean and South China sea from 2010. Credit: Thornton et al/Geophysical Research Letters/AGU Thunderstorms directly above

New research finds that the genetic variants linked to Alzheimer’s disease and heavy smoking are less frequent in people with longer lifespans, suggesting that natural selection is weeding out these unfavorable variants in some populations. Credit: National Institutes of Health In a study analyzing the genomes of 210,000 people in the United States and Britain,

Copper bead from Çatalhöyük. It consists of very pure copper in metal form, as found in nature. Credit: M. Radivojevi?, CC BY-NC-SA 3.0 When and where did humans invent metal smelting? Scientists from Heidelberg University, London and Cambridge (Great Britain) have found the answer to this long-debated question in the history of technology. Metallurgy does

How does our brain learn to recognize faces? Credit: © olly / Fotolia Scientists have long deemed the ability to recognize faces innate for people and other primates — something our brains just know how to do immediately from birth. However, the findings of a new Harvard Medical School study published Sept. 4 in the

Ringing in ears keeps brain more at attention, less at rest, study finds Tinnitus, a chronic ringing or buzzing in the ears, has eluded medical treatment and scientific understanding. A new study by University of Illinois researchers found that chronic tinnitus is associated with changes in certain networks in the brain, and furthermore, those changes

Synesthesia is an extraordinary phenomenon where a sensation in one of the senses, such as hearing, triggers a sensation in another, such as taste. Credit: © Mangostar / Fotolia People who see colors while perceiving smells are better at distinguishing between different smells and different colors, and are better at naming odors, compared to a

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