The phrase "dwarf breeds" refers to small versions of animals or plants that have been specially bred to be smaller than their usual size. Full definition
Smaller dwarf breeds can live together in large spaces if they're the same sex and get along. (sandiegopetsmagazine.com)
Dachshunds are one of several dwarf breeds of dogs. (wileypup.com)
And many owners have a habit of overfeeding these breeds simply because it's not as easy to recognize the difference between normal and overweight in dwarf breeds. (animalso.com)