Members of Congress exploded Thursday over reports that taxpayer money has paid for experiments using “transgender lab rats,” saying it was time to shut down the government’s animal-testing industry.

Scientists have discovered a more robust way of grouping chemicals and using read-across for toxicological data to meet regulatory requirements, which could greatly reduce animal testing. Scientists ...

Employees at the Environmental Protection Agency’s research campus in North Carolina are preparing to take on a new responsibility. Bring home lab rats as pets. Or maybe some zebra fish. Both animals ...