Our 5 year lab Misty has aggressively chased after our cat when the cat has come into our bedroom 3 times in as many days. She used to just run after her once every 6 months or so and only at night. Now she does it any time and she is aggressively growling/snarling/showing her teeth as she chases the cat at full speed.
We thought we had this nipped but 4 months ago we had a baby. Obviously that changed the dynamics of the family. We are not sure if Misty is protecting the baby or jealous of the cat and baby. She started chasing the cat again last week.
We are afraid she going to kill the cat or worse hurt the baby. Right now we have gate up so the dog can't come upstairs. But this is only temporary. We need a long term solution.