For Sue Butler of Lafayette Hill, Pa., the decision to buy a dog came one year after she married her college sweetheart. Both she and her husband wanted a canine companion but exactly what type of dog would join them required some serious consideration. Knowing that children were at some point a part of their future, the Butlers spent a great deal of time contemplating which breed to choose. It was important that their dog be compatible with the babies they intended to have. They determined early on that a small breed was the right choice for them.

"My husband grew up with small dogs and had a good experience," says Butler. "His family had miniature schnauzers. I never had a dog as a child but I was afraid of the big ones. They made me nervous."

The Butlers were smart to think ahead and select a breed that would fit in with their personalities and the family they planned to have. There are so many options from which to choose. But contrary to what most parents first assume, a small dog does not necessarily guarantee a safe household for babies and toddlers.

Dr. Ilana Reisner, assistant professor of Behavioral Medicine at the University of Pennsylvania's School of Veterinary Medicine, is quick to assert that although smaller dogs may be less intimidating to an adult, it does not mean they are a safer choice for families. "As a parent, I would be equally cautious and alert with any breed and any size," says Dr. Reisner. "While there are behavioral differences among breeds, all dogs are capable of biting. People may not take as seriously a bite from a Chihuahua as a Labrador Retriever, but small dogs do bite and they can cause serious harm."

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