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Honeybee Queens May Pass Toxic Chemicals to the Next Generation

10 August 2026 at 23:58
Honeybee Queen Surrounded by Her RetinueStudy reveals how contamination can increase within colonies. Inside a honeybee colony, worker bees act as living filters. They intercept much of the pesticide contamination entering the hive, helping shield the queen and the developing young she produces. But when exposure continues and that protective system begins to fail, the queen may redirect the chemical [...]

A Major Dementia Study Finds Striking Differences After Age 90

Old Woman Alzheimer's Puzzle DementiaReaching 90 without dementia may feel like clearing the final hurdle. But the risk does not necessarily end there. Dementia risk does not disappear after age 90. Even among people who reach their 10th decade without cognitive symptoms, the likelihood of developing the condition can vary substantially by sex, race, ethnicity, and genetics, according to [...]

Un gruppo di ricercatori guidato da Richard Levenson (UC Davis) ha dimostra…

13 June 2026 at 09:54
Un gruppo di ricercatori guidato da Richard Levenson (UC Davis) ha dimostrato che i piccioni comuni (Columba livia) possiedono capacitΓ  di riconoscimento visivo e astrazione tali da poter identificare tumori maligni al seno con precisione millimetrica. Addestrati tramite condizionamento operante, i volatili hanno analizzato biopsie e microcalcificazioni mammografiche, raggiungendo un'accuratezza dell'85% sui singoli casi e del 99% quando le risposte venivano aggregate in gruppo ("flock-sourcing"). I limiti emergono solo di fronte alle masse radiologiche sfumate e prive di contorni netti, dove sia i piccioni che gli algoritmi di intelligenza artificiale addestrati sul loro modello falliscono. La scoperta apre alla possibilitΓ  di usare questi animali per validare l'efficacia dei nuovi sistemi di imaging medico, riducendo il carico di lavoro dei radiologi umani.

A Universe Without Dark Energy? Mathematicians Challenge Standard Cosmology

10 June 2026 at 12:22
Dark Matter Particles Astrophysics ConceptNew mathematical research suggests dark energy may not be needed to explain the accelerating expansion of the universe, challenging the foundations of the standard cosmological model. Mathematicians are questioning whether dark energy is actually responsible for the universe’s accelerating expansion. In a new study published in Proceedings of the Royal Society A, researchers at the [...]
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