The Bullenbeisser, also known as the German Bulldog, was an extinct breed of dog known for its strength and agility. The breed was closely related to the Bärenbeisser (some believe that the two breeds were one and the same; the names mean "Bull-biter" and "Bear-biter", respectively), and was an ancestor to the modern Boxer. It was, in all its aspects, similar to the present Alano Español (Spanish Bulldog) and very alike to the Dogo Argentino, not only in aspect, but also in usage. There were two regional varieties, the Brabanter Bullenbeisser and the Danziger Bullenbeisser. The breed is now extinct.
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