ON SOCIAL MEDIA, certain influencers love to throw around the word “toxic.” Seed oils are toxic. Oatmeal is toxic. Kale is toxic. But these claims are often false or misleading. Toxins are a real ...

Antibiotics usually save lives—but against some bacteria, they can make things worse. That’s the case with the Shiga toxin–producing Escherichia coli, where bacterial death releases a flood of a ...

New Guinea is home to some of the world’s most toxic birds. Why they contain poison, and how they withstand it is still a source of scientific mystery. The variable pitohui, a poisonous bird, captured ...

The early detection of the toxin microcystin could cause harm through summer. Levels of the toxin microcystin have been detected in Lake Erie weeks earlier than usual, according to the National ...