Gazelle : The Palestinian Biological Bulletin (ISSN 0178 – 6288) . Number 135, March 2016, pp. 1-20. | Page 5

5 vary in length, with the neck and shoulder quills being the longest, measuring 15 to 30 cm. The tail is covered with shorter spines that appear white in color. Among these, are longer, hollow, rattling quills. When irritated or alarmed, the Indian porcupine raises its quills and rattles the hollow spines on its tail. If the disturbance continues, the species launches a backward attack and hits its rear against the offending animal. This action drives the spines dee