cat and pup

you had just arrived home carrying your new cat you're golden retriever puppy was barking and waging it's tail it was really happy that your home until it noticed the cat the happy glint in it's eyes left, it's tail stopped wagging as it growls at the feline, you think they just need time to get along with one another so you set the cat down but it growled and hissed at the puppy as the pup barks at the cat