Dwarf Porcupines (IMAGE) Pensoft Publishers Caption The dwarf porcupines are much smaller than their cousins: dwarf porcupines on left, bi-color spined porcupines on right. Credit Dr. Tremaine Gregory, Smithsonian Conservation Biology Institute Usage Restrictions CC-BY 4.0 License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.