When done correctly, your dog and new baby can grow up together and be best friends BUT you must think ahead and have a plan in place. Training is key as well as allowing your dog time to adjust before the baby arrives.
When your dog goes after a cat, it’s following a very deeply ingrained instinct. For some breeds, this instinct is harder to break than in others. Herding and hound breeds are especially tricky since their “job” is to seek out and engage with prey items or livestock.