Last year, in July, Reine Protacio’s experiments suddenly stopped working. Every scientist encounters baffling results from time to time; you chalk it up to error, repeat the experiment, and hope for ...

If you think laughter and comedy are reserved strictly for humans, you’d be wrong. A study in the late 1990s showed that creatures like rats emit ultrasonic vocalizations while playing with or ...

Whenever we go online, we might find ourselves part of an experiment — without knowing it. Digital platforms track what users do and how they respond to features. Increasingly, these tests are having ...

A national watchdog group has filed an administrative complaint with Penn State’s president after an unpublished report from the university said nearly a dozen rats were subjected to so much pain they ...