In the short run this is not harmful to the dogs. All it does is give them really bad breath. If the dog continues to eat poop throughout their lives then this could lead to bigger more complex problems, such as the autoimmune disease, lupus.
Puppies already know how to poop. Edit: The original answer is incorrect. Puppies need stimulation to poop and urinate when they are first born. Typically the mother will lick the puppy to get it to urinate or poop, but if the owner needs to assist then you can use a warm paper towel on their stomach and anus to get them to use the bathroom. This is very important until they can do it on their own, which is about 2 weeks after birth typically.
Not really cos a dog's tongue is surprisingly cleaner than ours! But it could be just quite germful.
Yes Yes Yes
to lick poop
When the puppies are 7-10 weeks or less.
vitamins
Then you lick your butt hole
Burning poop releases harmful gases and pollutants into the air, which can be harmful to human health and the environment. It is not recommended to burn poop as a method of disposal.
chicken poop is very harmful to horse because if they eat it they could get a fices disease.
they eat mostly fishes like fish big fish that the poop on all the time and they lick the poop of as a drink
The Mother licks their bunghole, if you are bottle feeding puppies better get a dental dam.
Cat poop can contain harmful bacteria and parasites that can be harmful to plants if used as fertilizer. It is best to avoid using cat poop in your garden to protect your plants.