Scientists tested 79 monkeys from bioko , a volcanic island 19 miles off the west african coast .
科学家对79只来自比奥科这座距离非洲西部19英里的火山岛上的猴子进行了实验。
They compared siv from drills living on bioko island , off the coast of cameroon , to those on the mainland .
他们把来自生活在喀麦隆海岸的比奥科岛的鬼狒与来自大陆的鬼狒相比较。
The capital and largest city of equatorial guinea on the island of bioko in the gulf of guinea .
赤道几内亚首都和最大城市，位于几内亚湾的比奥科岛。
Photographer joel sartore brought his unique style and approach to bioko , making beautiful portraits of smaller creatures and photographing the sea turtles and other wildlife along the coast .
