@Luke da Zoo nerd These are Southern Muriqui and the group at Sorocaba zoo was the first group to breed in captivity. At most of the Zoos open to the public in Southern Brazil like those in Sorocaba , Sao Paulo, Curitiba only the Southern subspecies is kept. Whereas as far as I know the Northern subspecies is only currently kept at Belo Horizonte zoo (possibly more are kept in private ex-situ captive breeding facilities).
