A list of the biggest dog breeds in the world, including the usual suspects and such marvels as the Deerhound, the Neapolitan Mastiff and the Leonberger. Strange how the bigger the dog, generally the softer and dafter that they get. Out of this entire collection there is only one who would be good as a guard dog.
The English Mastiff, in terms of mass is the big daddy of all dogs and its dimensions particularly that of the male are something to be believed. Every inch of this dog gives off strength and power - if the planet Krypton had a dog then this would probably be it. The world record holding breed for weight, this dog can weigh up to two hundred and fifty pounds for a male and around fifty pounds less than a female.
http://therealowner.com/dogs/there-be-giants-the-biggest-dogs-in-the-world/
From the Upcoming ueue, submitted by taliesyn30.
As intelligence goes...on the list more than 1/2 way down there...no matter...it may take him awhile to learn a command...but the love he gives makes him worth it. My Border was smart as a whip, but more interested in 'working' for you than kissing and cuddling.
My Pug is extremely smart and can perform a lot of jobs we didn't teach it, however the dog is very stubborn when you want to teach it tricks.
Dogs just have different missions in life and sometimes owners try to train them for things they weren't bred to do. My Pug likes to try and herd children like they were pack animals but i would never try to teach it to the dog because that's not what pugs are good at.
(mine is the best at making unusual sounds)
It really is amazing to hear how gentle the breeds are in general.