One has claws at the end of is paws and the other is a pause at the end of a clause.
Explanation: This joke uses wordplay to compare a cat and a comma. The punchline highlights the similarities in sound between “claws” (a cat’s sharp nails) and “clause” (a part of a sentence). It then extends the wordplay by noting that a comma creates a “pause” in writing, while a cat has “paws.”