Leprosy has been found in groups of wild chimpanzees for the first time.
Researchers have shared shocking images of apes with the tell-tale lumps on their faces.
Cases have been confirmed among two unconnected West African populations of chimpanzees, in Guinea-Bissau and the Ivory Coast.
The leprosy strains are different and uncommon in humans, according to scientists from the Centre for Ecology and Conservation, University of Exeter.
While the origins of the infections are unclear, scientists say the disease is probably circulating in more wild animals than was previously suspected.
This could either be as a result of exposure to humans or other unknown environmental sources, they added.
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Source: Daily Mail