"The results obtained from mandrills, a species closely related to humans, support the disputed theory
that humans are attracted to those with a dissimilar genetic make up to maintain genetic diversity (MHC)
Lead author, Dr Jo Setchell from Durham University's Anthropology Department, said:
"This is an important advance in our knowledge of how mate selection works in monkeys.
We now need to dig deeper and establish how they do this. I think smell is a strong candidate here"