A black-tufted marmoset monkey sits on a ledge overlooking Rio de Janeiro from the top of Sugarloaf Mountain...
A black-tufted marmoset (Callithrix penicillata) monkey, known as "Mico-estrela" in Portuguese, sits on a ledge overlooking Rio de Janeiro from the top of Sugarloaf Mountain ahead of the 2014 World Cup, June 9, 2014. REUTERS/Paul Hanna (BRAZIL - Tags: SPORT SOCCER WORLD CUP ENVIRONMENT)