#4 The breed as we know it today was developed exclusively in the 19th century in the United States. Australian Shepherds were bred as herding dogs.
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#5 Australien Shepherds enjoyed an enormous popularity boom after the First World War.
![](https://pettime.net/wp-content/uploads/2021/04/Australian-Shepherd-57-1.jpg)
#6 Most Aussies are medium sized, but there are also miniature and teacup varieties.
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