Why do adult pitbulls attack puppies?

There is no evidence that adult pit bulls are more likely to attack puppies than any other breed of dog. In fact, pit bulls are often misjudged as aggressive dogs, when in reality, they are just like any other dog - some are friendly and some are not. It's important to remember that every dog is different and individual, and it's unfair to judge an entire breed based on the behavior of a few dogs.