![](http://www.alamy.com/thumbs/6/2F1A9496-5789-4363-BD79-40961973F502/2ADG981.jpg)
Laboratory rat. Sprague-Dawley rat (Rattus norvegicus) being weighed. This variety of rat is commonly used for animal experiments and has a life span
Laboratory rat. Sprague-Dawley rat (Rattus norvegicus) being weighed. This variety of rat is commonly used for animal experiments and has a life span of up to 3 years.
Size: 4064px × 2704px
Photo credit: © MAURO FERMARIELLO/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: animal, biological, biology, cage, caged, fauna, foundation, lab, laboratory, nature, norvegicus, ramazzini, rat, rattus, single, sprague-dawley, standing, weighing, wildlife, zoological, zoology