What is going on with the sizes and shapes of dogs and cats?

Dog varieties compared to cats. Excluding wild animals, why does there seem to be so much differences in the sizes and shapes of dogs compared to the sizes and shapes of domestic cats?

    What is going on with the sizes and shapes of dogs and cats?

    Dog varieties compared to cats. Excluding wild animals, why does there seem to be so much differences in the sizes and shapes of dogs compared to the sizes and shapes of domestic cats?...
    Other Pet Discussions : What is going on with the sizes and shapes of dogs and cats?...

    • What is going on with the sizes and shapes of dogs and cats?

      What is going on with the sizes and shapes of dogs and cats? Other Pet Discussions
      Dog varieties compared to cats. Excluding wild animals, why does there seem to be so much differences in the sizes and shapes of dogs compared to the sizes and shapes of domestic cats?

      What is going on with the sizes and shapes of dogs and cats?

      What is going on with the sizes and shapes of dogs and cats? Other Pet Discussions
    • It's because dogs are much more useful to humans. Humans have been breeding dogs for a huge variety of specific tasks, from pulling sleds to burrowing after small animals. This breeding resulted in a variety of sizes, shapes, and characteristics.