For generations, U.S. laboratories treated animal testing as an unquestioned prerequisite for new drugs and chemicals, even ...

Lee Zeldin, the E.P.A. administrator, revived a plan created during the first Trump administration to end the testing of ...

The experiment that became known as the Elephant Man trial began one spring morning, in 2006, when clinicians at London’s Northwick Park Hospital infused six healthy young men with an experimental ...