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Sniffer dogs tested in real-world scenarios reveal need for wider access to explosives
Dogs aren’t just our best friends, they’re also key allies in the fight against terrorism. Thousands of teams of explosive detection dogs and their handlers work 24/7 at airports, transit systems, cargo facilities, and public events around the globe to keep us safe. But canine detection is an art as well as a science: success depends not only on the skill of both dog and human, but also on their bond, and may vary … ⌘ Read more

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Generation of harmful slow electrons in water is a race between intermolecular energy decay and proton transfer
When high-energy radiation interacts with water in living organisms, it generates particles and slow-moving electrons that can subsequently damage critical molecules like DNA. Now, Professor Petr Slavíček and his bachelor’s student Jakub Dubský from UCT Prague (University of Chemistry and Technology, Prague) have described in detail one of the key mechanisms for the creation … ⌘ Read more

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Analysis of 4.4-million-year-old ankle exposes how earliest ancestors moved and evolved
For more than a century, scientists have been piecing together the puzzle of human evolution, examining fossil evidence to understand the transition from our earliest ancestors to modern humans. ⌘ Read more

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A rare variety of wheat with three ovaries—gene discovery could triple production
University of Maryland researchers discovered the gene that makes a rare form of wheat grow three ovaries per flower instead of one. Since each ovary can potentially develop into a grain of wheat, the gene could help farmers grow much more wheat per acre. Their work is published in the journal Proceedings of the National Academy of Sciences. ⌘ Read more

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10 Popular (and Weird) Ancient Foods
Many foods cherished by our ancestors continue to find a place on tables worldwide. From the staple presence of bread to the remarkable status of beer, countless ancient delights have withstood the test of time. But other foods have faded into oblivion and been mostly uneaten for centuries. Whether due to animal extinction or shifting […]

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Indonesia’s Lewotobi Laki Laki volcano unleashes new burst of hot ash
Mount Lewotobi Laki Laki, one of Indonesia’s most active volcanoes, erupted for a second straight day Wednesday, spewing towering columns of hot ash that later blanketed villages. No casualties were immediately reported. ⌘ Read more

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No sex, drugs or dangerous stunts: Instagram limits teens to PG-13 content
Teenagers on the social media app will be restricted to seeing PG-13 content by default and won’t be able to change their settings without a parent’s permission, Meta has announced. ⌘ Read more

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No sex, drugs or dangerous stunts: Instagram limits teens to PG-13 content
Teenagers on the social media app will be restricted to seeing PG-13 content by default and won’t be able to change their settings without a parent’s permission, Meta has announced. ⌘ Read more

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World’s largest rays may be diving to extreme depths to build mental maps of vast oceans
Many marine species are no strangers to the depths of the oceans. Some animals, like certain sharks, tuna, or turtles, routinely perform extreme dives, whereas for other species, such behavior has been observed less frequently. ⌘ Read more

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Can we hear gravitational-wave ‘beats’ in the rhythm of pulsars?
Pulsars suggest that ultra–low-frequency gravitational waves are rippling through the cosmos. The signal seen by international pulsar timing array collaborations in 2023 could come from a stochastic gravitational-wave background—the sum of many distant sources—or from a single nearby binary of supermassive black holes. ⌘ Read more

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