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Rats’ remarkable multiplying properties are one reason that pest-control efforts have barely made a dent in urban rat populations: In good conditions, a female rat can produce a litter of a ...
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 ...
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Richardson's lab tracks rats across the globe and his team conducted research in 16 cities including Oakland, Buffalo, Chicago, Boston, Kansas City, and Cincinnati for the study.
Martha Nussbaum, Professor of Law and Ethics at the University of Chicago, is a proponent of the capabilities approach to animal rights. The two main philosophical approaches to animal ethics are utilitarian and rights-based. The former is exemplified by Peter Singer, and the latter by Tom Regan and Gary Francione. Their differences reflect a ...
Rodents have been employed in biomedical experimentation from the 1650s. [1] Rodent studies up to the early 19th century were mainly physiological or toxicological.The first rodent behavioral study was carried out in 1822, a purely observational study [2], while quantitative rodent behavioral testing began in the late 19th century [1] [2].
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Animal testing, science, medicine, animal welfare, animal rights, ethics Animal testing , also known as animal experimentation , animal research , and in vivo testing , is the use of non-human animals , such as model organisms , in experiments that seek to control the variables that affect the behavior or biological system under study.