Voice of a forest, the red-eared monkey is the most abundant of Bioko Island’s 11 primate species. At least 12,000 years of isolation from mainland Africa has helped produce a one-of-a-kind ...

Treading water and barely able to open my eyes in what felt like a constant driving rain, I craned my neck upwards trying to guess the height of the ledge above. I was under a cascade of water ...