This is Rodney, a “gentle, sweet” dog destroyed by medical experimentation, according to PCRM (Physicians Committee for Responsible Medicine).
PCRM asks in one of its latest correspondences for concerned citizens to keep this picture of Rodney, who was abused in medical experimentation, “suffered so needlessly”, and was finally put to sleep when he had “no more to give” to serve as “a reminder of all the animals you can save by supporting PCRM”. Click on http://www.PCRM.org .