Laboratory rats or lab rats are strains of the rat subspecies Rattus norvegicus domestica 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.
Rat-baiting
Hooded
Dissection
Morris water navigation test
Rats are various medium-sized, long-tailed rodents. Species of rats are found throughout the order Rodentia, but stereotypical rats are found in the genus Rattus. Other rat genera include Neotoma, Bandicota and Dipodomys.
Rat
A rat in a suburb of Vancouver
Skeleton of a black rat (Rattus rattus) on display at the Museum of Osteology.
A closeup of a rat tail