Ili pika (Ochontana iliensis) is a small mammal (only 7-8 inches long) that's native to the Tianshan mountain range of the remote Xinjiang region of China.
The species was only discovered in 1983, but its numbers have declined by almost 70% since then, reports CNN. This is because the mammal's habitat is being affected by climate change. Rising temperatures have forced the pikas to retreat up into the mountain tops. In addition, grazing pressure from livestock and air pollution have likely contributed to their decline.