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American Association for the Advancement of Science (AAAS)


Psilocybin prevents chemotherapy-induced peripheral neuropathy in mice

Researchers found that psilocybin durably prevented chemotherapy-induced peripheral neuropathy in mice, preserving nerve function and tumor-killing effects. The study's findings have potential disease-modifying approaches to chronic pain and may reframe CIPN as a failure of resilience that can be addressed with early intervention.

The 2026 vehicle emissions standard rollback is founded on faulty assumptions

The 2026 vehicle emissions standard rollback is founded on faulty assumptions, according to a recent study. The analysis hinges on incorrect valuation of fuel savings, which results in billions of dollars in benefits being removed from vehicle emissions standards. A new framework for translating consumer behavior into cost-benefit anal...

The heart’s backup blood vessels grow from capillaries, not arteries

Researchers found that capillary endothelial cells are major building blocks of new coronary collaterals, which are essential for cardiac repair. A VEGF-driven molecular pathway promotes the conversion of capillaries into collateral arteries, offering a potential strategy for enhancing de novo collateral formation and cardiac repair.

Mexico was an evolutionary “holding pen” for millions of years before mammals’ continental migrations

Mexico served as a long-term evolutionary hub where North American species adapted and diversified for millions of years before migrating to South America during the Great American Biotic Interchange. The findings suggest that prolonged diversification in Mexico contributed to the eventual prevalence of North American mammals in South ...

Aerial-aquatic “flapping-wing” robot sheds light on how birds move between air and water

Researchers developed a flapping-wing robot that can fly through the air and swim underwater, studying how birds adapt to life in two radically different environments. The study found that smaller wings increase underwater speed but do not improve swimming efficiency, suggesting reduced wing size enhances maneuverability.

Flowering plants diversified seed dispersal strategies earlier than thought, study suggests

A recent study analyzing Late Cretaceous fossils found diverse fruit and seed morphologies in flowering plants, challenging the traditional timeline for their reproductive evolution. The discovery expands our understanding of forest ecology and plant-animal interactions during angiosperm evolutionary history.

Editorial Expression of Concern on 2024 Research Article “Durably reducing conspiracy beliefs through dialogues with AI”

The Science journal has issued an Editorial Expression of Concern regarding a 2024 Research Article on using dialogues with AI to reduce conspiracy beliefs. The authors reported inconsistencies in their analysis pipeline and dataset, which affected the reproducibility of their results.