Common larger mammals are Himalayan musk deer, mainland serow and Himalayan tahr. The tahr is common, the serow, goral, musk deer and bharal, blue sheep are rare. They are blackbuck, mouflon, Himalayan tahr and takin. Himalayan tahr "Hemitragus jemlahicus (VU)" and serow "Capricornis sumatraensis (VU)". Fauna include the Ruus al Jibal fan-footed gecko, Arabian tahr and caracal. Animals include the Bengal Tiger, Asian Elephant, and Nilgiri Tahr. It has largest population of two endangered species- lion-tailed macaque and nilgiri tahr. The Valparai range is habitat to the Nilgiri tahr, an endemic wild ungulate. These also include vulnerable species like the Bengal tiger, Nilgiri Tahr, and the lion-tailed macaque. The Valparai range is also habitat to the Nilgiri tahr, an endemic wild ungulate. The Nilgiri tahr was described as "Capra warryato" by Gray. The park was created to protect its keystone species, the Nilgiri tahr. The Nilgiri tahr can be found in the hills. A subspecies, the Eastern Himalayan tahr or shapi, was described in 1944. Jabal Akhdar is a home of the Arabian tahr, a unique species of wild goat.