You've heard the concept of the "rat race," but how about a literal rat, racing through the hallways of Doom? One researcher named Viktor Toth ran an experiment over nearly six months, seeing if he ...

One study found that rats emitted ultrasonic vocalizations when they were subjected to manual somatosensory stimulation, i.e., tickling. The results of this controversial research were published in ...

In a new study Indiana University researchers observed episodic memory in rats to a degree never documented before, suggesting that rats can serve as a model for complex cognitive processes often ...

Scientists have completed a brain cell transplant, combining lab-grown clumps of human brain cells with those of newborn rats. The experiment is disturbing, but there's a good reason behind the move.

Seven years ago, researchers at Stanford University started an ambitious experiment: They began growing miniature, simplified versions of the human brain from stem cells inside a lab, then later ...

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A semi-functional rat forelimb has been grown in the lab -- and primate limbs are next. A team of regenerative medicine scientists and surgeons at Massachusetts General Hospital (MGH) used a ...