It is just mucus. It is like the stuff from our nose.
thats means its vomiting (simply classic)
Not absolutely, but in some cases yes. For example: If the x-ray showed that the puppy had fluid in its lungs or a broken neck, you could infer that the puppy would most likely die.
Take it to a vet immediately!
i have a dog the happend to me to take to the vet it could be sick and im animal doctor
This is common, but not healthy. The brown fluid is digested blood, indicating the puppy is bleeding into its stomach. You should talk with your veterinarian about this.
If a pup is born weak or is ignored by its mother, your assistance can save its life. For instance, if a newborn puppy appears cold and weak with irregular or no breathing, hold it firmly and swing it up and down between your legs with its head down. This will help drain fluid from the mouth and lungs. To stimulate breathing, rub the puppy briskly with a warm towel. By blowing gently into its nose and softly pressing its chest with your fingers you can also help induce breathing. When the puppy starts breathing on its own, return it to its mother. If this doesn't work then you should immediately take the puppy to the vets. Even if you manage to get the fluid from the pups chest it's a good idea to have the vet check out the puppy.
you go to pet shop you see one you buy it,there you have a puppy
you could be allergic to puppy or an adult dog
Real true love:)
If you can breathe, the puppy can. If you have used bleach water to clean somewhere the puppy will be, let it dry before it comes in contact with that area.
When your puppy comes in start wiping their feet with a towel and in a few months they will stop at the door to let you wipe them.
Many different things. You need to have a vet see your puppy to know for certain and to get the proper treatment for the puppy's rash.