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 ...

In an experiment reminiscent of "Frankenstein," scientists found that rat brain cells can fill in for lost neurons in mice, even allowing the host rodents to sniff out sweets. While splicing rat and ...

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 ...

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Real change takes a long time, and when it happens, it must be recognized. The FDA and the NIH have announced their move away from animal testing, improving scientific outcomes and marking a victory ...