Secondary ion mass spectrometry reveals atoms that make up MXenes and their precursor materials

A new technique using secondary-ion mass spectrometry has given Drexel researchers a fresh look at the two-dimensional materials they have been studying for more than a decade. Credit: Drexel University Since the initial discovery of what has become a rapidly growing family of two-dimensional layered materials—called MXenes—in 2011, Drexel University researchers have made steady progress … Read more

Genomic analysis reveals true origin of South America’s canids

A pack of bush dogs crosses a stream. Credit: Diego Torres/Napo Wildlife Center Ecolodge South America has more canid species than any place on Earth, and a surprising new UCLA-led genomic analysis shows that all these doglike animals evolved from a single species that entered the continent just 3.5 million to 4 million years ago. … Read more

Scientific ‘detective work’ with South American mummies reveals they were brutally murdered

The Marburg male mummy – macroscopic views of the whole mummy. Credit: AM Begerock, R Loynes, OK Peschel, J Verano, R Bianucci, I Martinez Armijo, M González, AG Nerlich How frequent was violence in prehistoric human societies? One way to measure this is to look for trauma in prehistoric human remains. For example, a recent … Read more

Study of fraternity hazing reveals little connection to group solidarity

Credit: Pixabay/CC0 Public Domain Even though it reaches deep into human history, hazing remains a puzzling behavior for social scientists. Why would people systematically abuse their own future allies by making them participate in extremely unpleasant group initiation practices? For colleges and universities, hazing has been a pressing safety issue for decades, so much that … Read more

Simple animal model reveals how environment and state are integrated to control behavior

The neuron AWA stretches from the worm’s brain to its nose. Credit: Ian McLachlan/MIT Picower Institute Say you live across from a bakery. Sometimes you are hungry and therefore tempted when odors waft through your window, but other times satiety makes you indifferent. Sometimes popping over for a popover seems trouble-free but sometimes your spiteful … Read more

Boy’s discovery reveals highly complex plant-insect interaction

An ant holds an oak gall containing wasp larvae. Researchers discovered a elaborate relationship among ants, wasps and oak trees. Credit: Andrew Deans, Penn State When eight-year-old Hugo Deans discovered a handful of BB-sized objects lying near an ant nest beneath a log in his backyard, he thought they were a type of seed. His … Read more

Vast paleogenetic study reveals insights on migration, farming and language development across the Southern Arc

Credit: University of Vienna In a trio of papers, published simultaneously in the journal Science, Ron Pinhasi from the Department of Evolutionary Anthropology and Human Evolution and Archaeological Sciences (HEAS) at the University of Vienna and Songül Alpaslan-Roodenberg from the University of Vienna and Harvard University, Iosif Lazaridis and David Reich at Harvard University—together with … Read more

Experiment on YouTube reveals potential to ‘inoculate’ millions of users against misinformation

A screenshot from the Inoculation Science video explaining Emotional Language use in misinformation. Credit: Inoculation Science Short animations giving viewers a taste of the tactics behind misinformation can to inoculate people against harmful content on social media slot when help in YouTube’s advert online experiment, according to a major led by the University of Cambridge. … Read more

Ancient megalodon super-predators could swallow a great white shark whole, new model reveals

The reconstructed megadolon was 16 meters long and weighed over 61 tons. Credit: JJ Giraldo In a new 3D modeling study published this week in Science Advances, we show that the giant extinct shark, Otodus megalodonwas a true globetrotting super-predator. It was capable of covering vast distances in short order, and could eat the largest … Read more

Data from ESA’s Gaia mission reveals our Sun’s future and past

On June 13, the third major data release from the European Space Agency’s (ESA) Gaia mission revealed details about the past and future of our solar system’s star, the Sun, by using data collected by Gaia on stars of similar mass and composition to our Sun. Gaia is a star mapping mission and collects massive … Read more