The rock monkey of Taiwan has the distinction of being the only other primate on the island besides man. Taiwan is, in fact, their only home in the world.
舊世界猴出現較早，已從樹林漸遷居草原、洞穴，尾巴用得少了，逐漸退化；新世界猴仍多居叢林，所以還能用來得心應『尾』。」