A line drawing of a Marco Polo sheep ram.
A group of Marco Polo sheep rams (Ovis ammon polii) stand ready to flee, in the eastern Pamir mountains in Gorno-Badakhshan,Tajikistan. This threatened subspecies of argali sheep inhabits the uplands and alpine valleys of the Pamirs.
A tiger crossing the Ramganga near Dhikala, Uttarakhand, in April. Schaller’s book “The Deer and the Tiger” was an outcome of his study in the Kanha National Park.
A mountain in Rwanda. Schaller was the first person to study gorillas.
The chiru, or Tibetan antelope, was once poached for its fine wool called shahtoosh. Vast protected areas in the Chang Tang, the great northern plain of the Tibetan Plateau, may ensure its future survival.
Schaller's book "Stones of Silence" was the result of his studies on the snow leopard and other Himalayan wildlife.
Two adult nilgai bulls fighting in the Rajaji Tiger Reserve; the upper part of their necks and faces are bloody because they are stabbing one another with their horns.
Healthy chital in the Rajaji Tiger Reserve.
The Himalayan monal is a pheasant of the Great Himalayan National Park, Himachal Pradesh.
The western tragopan is the State bird of Himachal Pradesh; a rare picture of a male in the wild.
A six-year-old male panda at the Wolong Nature Reserve in China. Schaller carried out the first detailed study of the giant panda.
An 18-month-old female panda, Xi Wang, lazily eating bamboo in the Qin Ling Mountains, Shaanxi Province, China.
Schaller's much-acclaimed book "The Serengeti Lion: Predator-Prey Relations" was the outcome of his landmark study on the African lion and associated animals in the Serengeti National Park in Tanzania.
Bivash Pandav showing Schaller the tiger claw marks on a jamun tree.
The author (Johnsingh) with Schaller in the Rajaji Tiger Reserve.
Sanjeeva Pandey, a former director of the Great Himalayan National Park, with Schaller.