What is the joke for the pun a dog not only has a fur coat but also pants?

Oh, what a delightful pun! You see, the joke here is that dogs have fur all over their bodies, so it's like they're wearing a fur coat. And when we say they also have "pants," it's a playful way of referring to the fur on their hind legs, just like how humans wear pants on their legs. It's a fun and light-hearted way to appreciate our furry friends!