All about the presa canario
https://youtu.be/6rE2s3gvsTs
The presa canario has a powerful, square head that is nearly as wide as it is long. The muzzle is broad. The chest is deep and broad. The rump is slightly raised. This presa canario breed has thick skin, dense bones, powerful muscles and a massive head with a large jaw. The ears are usually cropped. Colors include fawn and various brindles; white markings are sometimes seen.
