The Himalayan mastiff is a much bigger dog, a loveable-looking animal on the lines of the Great Pyrenees.
The owner of the mastiff digs in and tries to drag his dog over to us to have a chat.
The two dogs were cross-breeds of a mastiff and bull terrier and were kept, presumably as pets, by a woman with very young children.
The presa canario - a cross of the bardino majero, an extinct Spanish breed, and the English mastiff - is typical of dogs engineered to fight other animals.
A fearsome Tibetan mastiff stands guard outside a dwelling while a smaller dog is ready to sound the alarm indoors if anyone is clever enough or lucky enough to slip past the mastiff .
It is said that what the lion is to the cat, the mastiff is to the dog.
Joining all-time favourites Labradors and German shepherds are the golden retriever, Rottweiler and English mastiff .
News of the fatal attack has prompted enquiries from prospective owners to kennels that raise the dogs, which were originally bred from cattle dogs, mastiffs and bulldogs brought to the Canary Islands by British settlers.
The adjacent moat was found to contain the well preserved skulls of two lions and a leopard, and dog skulls - possibly mastiffs used for baiting - which were dated to between the 14th and 17th centuries.
Three large mastiffs rush into the room, snarling.