The Serrano Bulldog is one of the Brazilian dog breeds. This breed was developed in the 1800s from the breeds that were brought to the southern Brazilian states by European immigrants.
The word "Serrano" is derived from a Portuguese word. Brazilians use this term for those who live in regions with hillsides or mountains.
This breed was mainly used in butcher shops and slaughterhouses where it could drag pigs by their ears and subdue cattle.
Due to hygienic issues, butcher shops and slaughterhouses stopped using this breed, and they became unemployed. This breed was moving toward extinction.
One of the bulldog lovers, The bulldog, Cynophile Ralf Schein Bender, successfully rescued the Serrano Bulldog from extinction.