Hidden bacterial molecules in the brain reveal new secrets of sleep

New studies show that a bacterial molecule, peptidoglycan, is present in the brain and fluctuates with sleep patterns. This challenges the idea that sleep is solely brain-driven, instead suggesting it’s a collaborative process between our bodies and microbiomes. The theory links microbes not only to sleep but also to cognition, appetite, and behavior, pointing to a profound evolutionary relationship.

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Dogs can tell how toys work without any training

Gifted dogs can categorize toys by function, not just appearance. In playful at-home tests, they linked labels like “fetch” and “pull” to toys—even ones they’d never seen before. The findings hint that dogs form mental concepts of objects, much like humans, pointing to deeper cognitive abilities.

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Fish love songs recorded for 12 years reveal a surprising shift

By recording grouper grunts for 12 years, scientists discovered major shifts in how red hind spawn and compete. Courtship calls once dominated, but territorial sounds have surged, suggesting changes in population structure. Machine learning helped decode the patterns quickly, offering a groundbreaking way to monitor and conserve reef fish.

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Stunning fossil from the Gobi Desert rewrites dinosaur history

A newly discovered fossil in Mongolia’s Gobi Desert has revealed the oldest and most complete pachycephalosaur ever found, offering a rare glimpse into the early evolution of these dome-headed dinosaurs. Named Zavacephale rinpoche, or “precious one,” this juvenile specimen dates back 108 million years, pushing the group’s fossil record back by 15 million years.

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Embracing sustainable practices would help some winery tasting rooms stand out

Wineries in the mid-Atlantic region should consider recycling and encouraging their customers to bring bottles to their tasting rooms for refilling to distinguish their businesses from so many others, according to a team of wine-marketing researchers who surveyed consumers.

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Ants: Jam-free traffic champions

Whether they occur on holiday routes or the daily commute, traffic jams affect cars as well as pedestrians. Scientists have demonstrated that ant colonies, however, are spared these problems and circulate easily, even in the event of extremely dense traffic, thus ensuring consistent efficiency in their foraging.

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