Answer:
They have 4 legs.
They have good hearing.
They have good scences.
Some of them have fur.
They are smaller then aother dogs or bigger then other dogs.
They are hard to teach.
Some dogs are smaller then others.
The similarities are they all have ears and four legs and they are all dogs. The differences are they are all different breeds and they don’t all have long ears and they are not all the same size.
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