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 ...

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A national watchdog group has filed an administrative complaint with Penn State’s president after an unpublished report from the university said nearly a dozen rats were subjected to so much pain they ...

Add Yahoo as a preferred source to see more of our stories on Google. histological image shows a cross section of a rat's brain, depicted in red, with a glowing green blob on the top right side; the ...

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.