We crafted our first rodent car from a plastic cereal container. After trial and error, my colleagues and I found that rats ...

Time-out studies show that when a pigeon or rat can turn off a stimulus which is associated with a particular reinforcement schedule, the frequency and duration for which it does so vary inversely ...

Using an existing gang cage designed for ferrets, we developed a version that would be suitable for housing rats. Caging consisted of 3 floors with a combined floor area of 11620m, connected by 2 ...

Special to The New York Times. TimesMachine is an exclusive benefit for home delivery and digital subscribers. Full text is unavailable for this digitized archive article. Subscribers may view the ...

(Moderator) "We rarely see this problem in rats but relatively often in mice, especially in C57Bl/6 and Tg strains with C57Bl/6. It seems to be worse if the animals are nervous or have litters. Since ...