Canine Tumor Draws Energy From Host, Report Says

Tasmanian devil.

People may be familiar with the transmissible facial tumor that is decimating the Tasmanian Devil population. One unfortunate animal contracts it when bitten by another affected individual. This New York Times story describes another infectious malignancy, the Canine Transmissible Venereal Tumor (CTVT) (thanks to Steve Silberman).