Laboratory rat. Sprague-Dawley rat (Rattus norvegicus) inside a cage. This variety of rat is commonly used for animal experiments and has a life span

---

Laboratory rat. Sprague-Dawley rat (Rattus norvegicus) inside a cage. This variety of rat is commonly used for animal experiments and has a life span of 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, foundation, lab, laboratory, medical, medicine, ramazzini, rat, sprague-dawley, zoological, zoology