Researchers develop a machine-learning tool for toxicity analyses that is more consistent in predicting chemical hazards than assays on animals.

Reducing the evaluation to only direct contact, rather than including environmental exposures, could leave damaging substances on the market, critics say.

Researchers pinpoint a protein that can metabolize at least one of the insecticides, highlighting a route to identifying compounds that are friendlier to the critical pollinators.

The University of Rhode Island neurotoxicologist and dean came to the U.S. for college in the 1980s. 

Increasingly sophisticated tissue organoids can model many aspects of disease, but animal studies retain a fundamental role in research, scientists say. 

Exposing male rats to nonionizing radiation increased the animals’ risk of brain and heart tumors in a study, but the findings are far from conclusive.

Scientists debut a system that can quickly test the toxicity of thousands of compounds in vitro.

Andean communities may have evolved the ability to metabolize arsenic, a trait that could be the first documented example of a toxic substance acting as an agent of natural selection in humans.

Cracking the case of laboratory mice that suddenly stopped reproducing involved a little chemical sleuthing