This is the experimental set-up used to test whether dogs can discriminate emotional expressions of human faces. Credit: Anjuli Barber, Messerli Research Institute Dogs can tell the difference between happy and angry human faces, according to a new study in the Cell Press journal Current Biology on February 12. The discovery represents the first solid

This is the experimental apparatus to test whether dogs can discriminate emotional expressions of human faces. Credit: Clever Dog Lab, Messerli Research Institute A team of cognitive scientists at the University of Veterinary Medicine Vienna has demonstrated for the first time that dogs can differentiate between happy and angry human faces. Dogs may have developed

The hormone oxytocin is probably a key factor in the interaction between dogs and humans. Credit: Sanni Somppi Researchers in the University of Helsinki’s Canine Mind research project found that oxytocin made dogs interested in smiling human faces. It also made them see angry faces as less threatening. Associated with affection and trust, the hormone

The more readily the brain forms and reforms its connectivity in response to changing needs, the better it works, according to Aron Barbey, author of the paper. Credit: © denisismagilov / Fotolia Centuries of study have yielded many theories about how the brain gives rise to human intelligence. Some neuroscientists think intelligence springs from a

Diagnosing a concussion can sometimes be a guessing game, but clues taken from small molecules in saliva may be able to help diagnose and predict the duration of concussions in children, according to Penn State College of Medicine researchers. Credit: © ibreakstock / Fotolia Diagnosing a concussion can sometimes be a guessing game, but clues

This image from NASA’s Mars Curiosity rover shows the Amargosa Valley, on the slopes leading up to Mount Sharp on Mars. Credit: NASA / JPL-Caltech / MSSS How good is your Martian geography? Does Valles Marineris ring a bell? This area is known for having landslides that are among the largest and longest in the

This image is a view of Titan, Saturn’s largest moon, with its ringed host in the background. New research from the University of Washington may solve a riddle of the direction of sand dunes on the moon’s surface. Credit: Antoine Lucas / NASA With its thick, hazy atmosphere and surface rivers, mountains, lakes and dunes,

Titan’s winter polar vortex imaged by the Cassini Spacecraft’s ISS camera. The vortex is now in deep winter and can only be seen because the polar clouds within the vortex extend high above Titan’s surface into the sunlight. The vortex was extremely cold from 2012-2015 giving rise to unusual nitrile ice clouds. Credit: NASA/JPL-Caltech/Space Science

This HiRISE image cutout shows Recurring Slope Lineae in Tivat crater on Mars in enhanced color. The narrow, dark flows descend downhill (towards the upper left). Analysis shows that the flows all end at approximately the same slope, which is similar to the angle of repose for sand. Credit: NASA/JPL/University of Arizona/USGS Dark features previously

Ellis Island National Museum of Immigration, Upper New York Bay. Credit: © littleny / Fotolia In the 19th century, over 5 million Germans moved to North America. It was not only a century of poverty, war and revolutions in what is now Germany, but also of variable climate. Starting at the tail end of the

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