Sometime in the mid-1970's - there is disagreement over who was first - local breeders began to import purebred fighting bulls from Mexico.

The animal I faced was a vaquilla, a young female genetically predisposed to aggressiveness from the stock used by breeders to produce brave and lucrative fighting bulls.

Only few breeds still have this aurochs feature, like the Spanish fighting bull or Sayaguesa Cattle.

In 2007, the Spanish fighting bull breeding industry was allocated 500 million euros in grants, and in 2008 almost 600 million.

'Don't you know that ruins a fighting bull?'

The ranch originally belonged to Don Eduardo Miura Fernández, and is known for producing large and difficult fighting bulls.

Most livestock raised in the state is beef cattle and dairy cows along with the renowned fighting bulls.

For the first time in his life Clay was seeing the famous fighting bulls of Spam and he asked the usual questions: 'They aren't fenced in?'

The Camargue bull is smaller than the Spanish fighting bulls, stocky, with high horns and head.

Although genetically very close to the Aueroch as well the Lidia breed (Spanish fighting bull) was not used for the project due to its aggressive behaviour.