Saw this in another thread and I though a quickie on Asutralian Cattle dogs would be appropriate here.
I love them, they are a great working dog, tough as old boots, loyal and lots of fun. But like most workers, they do need plenty of exercise.
Since I live in a ranching area, the dogs I've seen that can be aggressive are cattle herding dogs like blue heelers (sometimes amusingly listed in the paper as "blue healers") and other herding dogs. Also, I VERY UNFORTUNATELY live in an area where people fight dogs, in particular "pit" type bulldog-looking animals.
What this all boils down to (as far as I can see) is *irresponsible owners*. What kind of total creep puts his dog in a fight, and then abandons it on a mesa to die if it loses the fight? What kind of fool leaves his dog all alone all day long, with nothing to do but chase livestock (like he's been bred to do)? Some of these

"people" don't even feed the poor things.
Every time I see someone out walking their dog, on a leash, or a dog off-leash on a good strong heel, I stop and tell the person how wonderful they are. I wish all dog owners would be responsible, and actually take care of, and love, their dogs!
History/Origin
The present-day Australian Cattle Dog went through a series of breeding before it was finally proved to be a herding dog in the hot zones of the Australian terrains. Early settlers from the Western world had difficulties adapting their homeland breed types with the rugged and hot temperate climate of the Australian surroundings. There had been numerous attempts to settle to a standard type Australian Cattle Dog before, but all endeavors proved futile.
The problem that ensued on all earlier experiments was that poor breed outcomes resulted to dogs that refuse to do the herding job. Even earlier pet dogs brought by the pioneering inhabitants from the Western world, easily succumbed to tropical Australian climates, and breeding failed beforehand. The modern Australian Cattle Dog is a cross-breed of a maelstrom of canine dogs including the Russian Poodle, Bull Terrier, Collie, and Kangaroo dog.
Description
The Australian Cattle Dog has a coat that can come in a wide diversity of markings, which are usually astounding. The coat of this dog looks a bit bluish. The bluish coat of the dog indicates the absence of the unusual albino patching. This dog is covered with hairs that are usually differently colored like tan and white, and black and white.
The Australian Cattle Dog is generally color blue, having ginger feet with abundant ginger markings on its legs. Some types of this dog possesses white marks on the middle of its forehead that commonly measures about two centimeters by seven centimeters. A healthy female usually measures roughly up to 19 inches. On the other hand, the male measures up 20 inches. An Australian Cattle Dog has well-toned muscles and has dense coats. Its tail is typically long with a petite whitish tip. An Australian Cattle dog that is given enough food and plenty of exercise weighs up to 50 pounds.
Temperament
Like any other dog that is used to herding and farming activities, the Australian Cattle Dog is high spirited and overly energetic. An owner should know that this dog needs myriad of exercise and activities to do like taking part in dog games, and learning old and new tricks. One must remember that if cattle dogs are not given enough exercise, they often resort to their own brand of activities that are commonly destructive.
Aside from being a vigorous animal, this dog is cautious by nature; and this characteristic makes it a very ideal guard and companion dog. The negative aspect of this dog is its weird affection for shredding and ripping things like fabrics, upholstery, garments, and other materials used for bedding