The challenge now is to make the lesula an iconic species that carries the message for conservation for all of Congo's endangered fauna," said John Hart. "Species with small ranges like the lesula can move from vulnerable to seriously endangered over the course of just a few years."
The last monkey to be discovered in Africa was the kipunji (Rungwecebus kipunji) in Tanzania in 2003, nearly two decades after the last find, the sun-tailed monkey (Cercopithecus solatus) in Gabon, in 1984.
The researchers' work on the Lesula was published this week in the journal PLOS ONE.