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American Association for the Advancement of Science (AAAS)


A species identified in 2016 as an ancient form of chameleon was misidentified at that time, say researchers

Researchers re-examined ancient fossils found in Myanmar's amber deposits, revealing that a species initially thought to be an ancient form of chameleon was actually part of the albanerpetontid lineage. The new findings indicate that these ancient amphibians were climbers with specialized tongues for catching food.

New assay screens human brain organoids, doubles known candidate genes for microcephaly

A new tissue screening assay for human cerebral organoids identified 25 additional candidate genes for microcephaly, nearly doubling the number of currently known genes linked to the rare neurological condition. The CRISPR-LICHT technology revealed these genes associated with both known and previously unknown microcephaly-driving pathw...

Burning biomass fuels at home led to 32% of premature deaths from inhaling fine particles in China in 2014

A new study found that burning biomass fuels like wood and crop residues contributes to 32% of premature deaths due to inhaling fine particle pollutants in China. Residential energy use, especially indoor emissions, pose significant health risks, with indoor PM2.5 concentrations being 3 times higher than outdoor air concentrations.

Mathematical modeling suggests optimal timing for antiviral therapies against COVID-19

A new study by Ashish Goyal and colleagues proposes that treating with potent antiviral therapy before peak viral load can effectively suppress viral AUC, reducing the duration of viral shedding. The model also suggests that timing is crucial in determining the effectiveness of different therapies against COVID-19.

To avoid impression that SARS-CoV-2 transmission is ever-changing, interpret new info using existing

The authors argue that the rapidly developing research on SARS-CoV-2 transmission provides a solid foundation for interpreting new information. The established knowledge of viral spread across various contexts and spatial scales, including household, residential, and community settings, remains well-established.

More evidence of benefits of REGN-COV2 antibody cocktail to both protect from and treat disease

Researchers have found that REGN-COV2 offers benefits in animal models mimicking SARS-CoV-2 infection pathology, providing evidence for its therapeutic potential both as a preventative measure and treatment. The study demonstrates significant protection against weight loss and viral load reduction in golden hamsters treated with the drug.

New findings from OSIRIS-REx detail complex history of Asteroid Bennu

The OSIRIS-REx spacecraft has provided detailed insights into the composition and structure of asteroid Bennu, a 'rubble pile' of carbon-rich material. Researchers have discovered that Bennu's surface has undergone complex evolution due to space weathering processes and that carbonate minerals are widespread across most of its surface.

Criticism of COVID-19 models by democratic political leaders may erode public trust in science

A study finds that criticism of COVID-19 models by Democratic elites undermines public support for the models and science more broadly. Republicans have little impact on public attitudes towards models. Scientists should acknowledge model uncertainty and convey what is known about the virus to build trust.

Bird brains' cortex-like structure may be behind complex cognition, and even consciousness

Two studies found that birds' pallium exhibits a layered architecture similar to mammals', potentially enabling complex cognitive abilities like consciousness. This structure may have been present in the last common ancestor of birds and mammals 320 million years ago, or evolved independently through convergent evolution.