54%

根據International Union for the Conservation of Nature (IUCN)，在634種靈長類動物中，54% is in a danger zone: 69 （11%）are now categorised as critically endangered, 137 （22%）as endangered, 97 （15%）as vulnerable and 36 （6%）as near threatened.

原因：被趕走（habitat loss），被吃掉，被賣掉

對數字不敏感，a picture is worth a thousand words.

A mountain gorilla from East Africa. Category: Endangered

A Java Gibbon from Indonesia. Category: Endangered

A Qinling golden snub-nosed monkey from China. Category: Endangered