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Laboratory rats or lab rats are strains of the rat subspecies Rattus norvegicus domestica (Domestic Norwegian rat) which are bred and kept for scientific research. While less commonly used for research than laboratory mice , rats have served as an important animal model for research in psychology and biomedical science [ 1 ] , and "lab rat" is ...
In the U.S., the numbers of rats and mice used are not reported, but estimates range from around 11 million [4] to approximately 100 million. [5] In 2000, the Federal Research Division, Library of Congress, published the results of an analysis of its Rats/Mice/and Birds Database: Researchers, Breeders, Transporters, and Exhibitors.
The terms animal testing, animal experimentation, animal research, in vivo testing, and vivisection have similar denotations but different connotations.Literally, "vivisection" means "live sectioning" of an animal, and historically referred only to experiments that involved the dissection of live animals.
A working rat is any rat which is trained for specific tasks as a working animal. In many cases, working rats are domesticated brown rats . However, other species, notably the Gambian pouched rat , have also been trained to assist humans.
The mouse (Mus musculus) has been used extensively as a model organism and is associated with many important biological discoveries of the 20th and 21st centuries. [39] Other examples include baker's yeast ( Saccharomyces cerevisiae ), the T4 phage virus, the fruit fly Drosophila melanogaster , the flowering plant Arabidopsis thaliana , and ...
As mice and rats have life spans of at most 5 years the “studies on these rodents in space have the potential to extrapolate important implications for humans living in space well beyond six months." [1] [2] The Rodent Research Hardware System was developed by scientists and engineers at NASA's Ames Research Center in Moffett Field ...
A research report is a publication that reports on the findings of a research project. [1]Research reports are produced by many sectors including industry, education, government and non-government organizations and may be disseminated internally, or made public (i.e. published) however they are not usually available from booksellers or through standard commercial publishing channels.
The specific voluntary crowding of rats to which the term "behavioral sink" refers is thought to have resulted from the earlier involuntary crowding: individual rats became so used to the proximity of others while eating that they began to associate feeding with the company of other rats. Calhoun eventually found a way to prevent this by ...