This article is from the Mastiffs Breed FAQ, by mmcbee@access.mountain.net (Mike McBee) with numerous contributions by others.
These are all traits that tend to vary more between individual
animals than between the sexes. A healthy, alert, intelligent dog
who did well on the Puppy Aptitude test and has been well
socialized and trained from Puppy Kindergarten onward is your best
chance at getting all the above characteristics. Socializing a dog
who started out with a good temperament gives you the friendliest
dog. A dog is protective when it has bonded well with you
(training your dog is an outstanding way to bond with it) and has
at least begun to mature. If you start training very young the dog
learns how to *learn* and will enjoy it more and perform better.
 
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