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To tackle a backlog in toxicity testing, US federal scientists are modernizing programs with high-throughput assays and AI. 

Discover why humans have long scalp hair, how it evolved, and the genetic reasons behind this uniquely human trait.

Scientists uncover the mechanism by which gut bacteria convert molecules in bile into sex hormones.

Volar injections made thigh skin thicker. This therapy could potentially help prevent pressure-induced skin damage in patients using prosthetics.

Scientists identify a signaling pathway that triggers muscle fatigue in response to nervous system inflammation or infections like SARS-CoV-2.

Data show that postdoctoral productivity and citations influence academic success, highlighting the underappreciated importance of postdoctoral training.

Bacterial DNA isolated from a 120-year-old preserved plant cutting helped reconstruct the history of Pierce’s disease in grapevines.

Researchers shed light on why microbes make the chemicals responsible for petrichor, the earthy smell of recent rain.

Plastic chemicals may harm DNA, as new research reveals how additives disrupt nematode egg formation, suggesting risks to human reproductive health.

Lab-grown mini-brains help scientists explore how concussions reactivate latent viral infections, triggering molecular phenotypes of dementia.

Many cancers upregulate an amino acid transporter to fuel their growth, making this protein a promising tool in tumor detection and therapy.

The microbiome of Antarctic worms helps them cope with extremely cold conditions, providing insights into the role of the microbiome in host health and adaptation.