How big is a red fox baby?

At birth, a red fox puppy typically weighs around 3 to 5 ounces (85 to 140 grams) and is about the size of a small kitten. They are born blind and helpless, relying completely on their mother for warmth and nourishment. As they grow, they quickly gain weight and develop their characteristic features, becoming more active and playful within a few weeks. By the time they are ready to leave the den, they can weigh several pounds.