A new species of monkey has been identified in Africa, researchers have said.
The species, known locally as the Lesula, was discovered after a young female was seen being kept captive at the home of a primary school director in the Democratic Republic of Congo in 2007.
The young animal resembled an owl-faced monkey, but its colouring was different to that of any known species, the researchers writing in the journal PLoS ONE said.
Other wild Lesula have since been found in a remote range in central Democratic Republic of Congo, where they live in forests and feed on leaf stalks, fruit and flower buds.
The discovery of the new species, in one of the country's last unexplored forest areas, is only the second time a new monkey species has been found in Africa in the last 28 years.