Ancestral and innovative tool in integrated fire management. In the last episode of the OnFire second series, Marcelo Oliveira talks to Luiz Gustavo Gonçalves, fire manager at Chapada dos Guimarães National Park, in Mato Grosso/Brazil, about the ancestral use of fire in prescribed burns and how it helped to reduce fires year by year, in addition to working closely with communities in the region, building a new paradigm on integrated fire management.