The data didn't make sense. Five years ago, University of Maryland researcher Alisa Morss Clyne was studying pulmonary hypertension -- a type of high blood pressure that affects the arteries in the ...

A controversial new study claims that more than 110 million of the mammals used in American scientific laboratories for experiments are either mice or rats — an assertion that, if true, is astonishing ...

The rat pack at Millersville University is breaking up and named for Marvel. Comic characters are among 16 rats retiring from the psychology department, rat lab and up for adoption, we feel like the ...

To learn more about how environmental factors influence the cognitive abilities of humans, researchers have trained rodents to drive tiny cars. It may sound far out, but rats have similar pathways and ...

The agency is cutting animal testing of chemicals. Some scientists are concerned, but in the meantime the rats (and zebra fish) need new homes. By Hiroko Tabuchi Employees at the Environmental ...