Bioko is home to four species of guenons, smaller and often colorful treetop-dwelling monkeys. The high-altitude Preuss's Guenon, distinguished by its white bib, hooked tail and bright blue testicles, is among Africa's ten most endangered primates.
Please note: Bioko Biodiversity
Protection Program's content is available to all versions of every web browser.
However, if your browser does not support basic web standards then the design of
the site will not be visible. To see this site as it was designed
please upgrade to a Web standards compliant browser.
Wildlife
Bioko's Four
Guenon Species
Guenon Species
© 1998-2008 Bioko Biodiversity Protection Program