Gilberto arrived at the Sanctuary in 2002, coming from a former commercial breeding facility that existed in southern Brazil. At this location, he was used as a breeding male.

Consequently, Gilberto is the father of several chimpanzees, some of whom also live in the Sanctuary and some he never met, as they were sold as commodities in the first days of their lives.

At the Sanctuary, Gilberto lives with his family in one of the largest groups. He loves playing with the young ones, is an excellent father, and, at the same time, is a dominant male and very territorial, always protecting the members of his group.