In character the breed is loyal and brave, attached to its family and watchful with strangers. Its standard describes a cheerful, friendly dog, yet its hunting background gives it strong drive and considerable strength. It was also meant to hunt silently rather than bay at its quarry.
The result is a muscular, athletic dog with a broad, strong head, a thick neck and a short, smooth coat that is entirely white. A single dark patch on the head is tolerated but not sought, and the nose is black. In Argentina the ears are often cropped, a practice banned in the UK.
The Dogo Argentino took its present form over several decades of selective breeding. After Antonio Nores Martínez, its creator, died in the mid-twentieth century, his brother Agustín carried on the work and promoted the breed at home and abroad. The Fédération Cynologique Internationale recognised it in the nineteen-seventies, and it is often described as the only Argentine breed with full recognition from that body. It was bred to hunt in packs across rough country. The dogs would find the quarry by scent, run it down and hold it until the hunters arrived, work that called for stamina, courage and a powerful grip.