What Are Blue Heelers Dogs?
Dc4580 gave you an excellent answer and referred you to a good web site. I would only add that these are great dogs and faithful companions but they are very active and need a lot of running around. They like to herd things and will try to herd you when they are bored. This is NOT a dog for apartment dwellers unless you are prepared to walk/RUN this dog several times a day in a big outdoor area. Most city parks are not big enough for these dogs. You have to find trails and large open areas.