Roughly 20 miles off the coast of west Africa sits a volcanic relic now completely blanketed in equatorial rainforest the island of Bioko Its home to some very rare species including the drill one ...

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 ...