Little is said about gender differences in cognition, and the chapter on rat strains does not explain the origins of the most popular strains and does not really provide an answer to the key ...

In order to stay away from confounding or unreliable experimental results, particularly with the increasing number of mouse and rat strains, attention to the genetic background is crucial.

STRATHAM — The New Hampshire SPCA is urgently seeking adopters for 250 mice and rats after receiving more ... surrender has placed a significant strain on the shelter's resources.