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Phys.org / Primate brains might have evolved to 'catch up' with larger bodies, but then kept growing

A new analysis supports the previously overlooked "brain lag" hypothesis—the idea that, in some primate lineages, the evolution of larger body size preceded the evolution of larger brain size—while also building on that hypothesis ...

Jul 1, 2026
Medical Xpress / Moms' responsiveness to their babies may predict later childhood psychiatric disorders

When mothers were slower to vocally respond to their 1-year-old children's vocalizations, the children were more likely to have been diagnosed with a psychiatric disorder by age 7, according to a study published in PLOS One ...

Jul 1, 2026
Tech Xplore / AI-human relationships are real and come with risks, researchers find

Human-AI relationships are no longer confined to the domain of science fiction. As the technology has developed, AI chatbots have evolved from playing a role in search engines and image-generation tools into confidants, therapists ...

Jul 1, 2026
Tech Xplore / Why AI fiction still feels flat: New test shows characters lack mystery and complexity

Researchers at the University of North Carolina at Chapel Hill have found that while artificial intelligence can spin increasingly convincing stories, its characters may still lack one of the qualities that make human-written ...

Jul 1, 2026
Phys.org / Were Clovis foragers in Late Pleistocene North America big-game hunters, or just big-game scavengers?

There are currently 15 well-documented Late Pleistocene localities in North America in which Clovis points are found associated with proboscidean remains (of mammoth, mastodon and gomphothere). Archaeologists routinely assume ...

Jul 1, 2026
Medical Xpress / Fear-learning circuit shows how stress disrupts brain's ability to suppress trauma

Fear is often thought of as a negative emotion but is actually a natural protective response to perceived threats or danger. It helps us survive. When we experience a situation that causes fear, it becomes stored in our brain ...

Jul 1, 2026
Tech Xplore / Tandem solar cell sets 25.5% efficiency record with CIGS-perovskite design

A Berlin-based team from HZB and Center for the Science of Materials Berlin (CSMB) at Humboldt-Universität zu Berlin has set a new record for a tandem solar cell. Using a combination of a CIGS semiconductor layer and perovskite, ...

Jul 1, 2026
Medical Xpress / Should lowest-risk prostate 'cancer' still be called cancer? How changing the name could save lives

A growing number of prostate cancer experts argue that calling the lowest-risk prostate cancer "cancer" does more harm than good. A new UCLA-led study found removing the cancer label could dramatically reduce overtreatment ...

Jul 1, 2026
Phys.org / One of the most distant 'leaky' galaxies ever found may reveal how the universe reionized

Astronomers have identified one of the most distant candidate galaxies known to leak ionizing radiation—the same kind of radiation thought to have transformed the early universe during the epoch of reionization.

Jun 30, 2026
Phys.org / Evolutionary origins of 'junk DNA' may provide new clues to cancer

In cancer research, one person's junk is increasingly becoming another person's treasure. Scientists have uncovered new evidence showing how recently evolved "junk DNA" genetic elements can become integrated into ancient ...

Jul 1, 2026
Phys.org / Open cluster NGC 6134 in Norma is 1.38 billion years old and hosts a core, tidal tail and diffuse halo

Indonesian astronomers have conducted a comprehensive study of an open cluster in the constellation Norma, known as NGC 6134. Results of the new study, available in a research paper published June 23 on the preprint server ...

Jun 30, 2026
Science X / This widely used PCOS supplement shows promise for fertility, but the evidence isn't settled

For women with polycystic ovary syndrome (PCOS), the journey to fertility can be difficult. But what if a simple, natural supplement could provide a big boost? This hopeful question has focused attention on myo-inositol, ...

Jun 30, 2026