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Rottweiler is a muscular, energetic, and robust dog breed. It is also known as Rottweiler Metzgerhund, or Butcher's Dog of Rottweil. 

They are believed to be the descendants of mastiffs. 

Originally from Germany, these dogs are employed for cattle herding. Recently, these have increasingly been used as guard dogs in police services and for search and rescue operations in natural disaster sites. 

Rottweiler dogs are quick learners and can adapt to different roles from family pets to service dogs. They are one of the top 10 most popular dog breeds in the USA.