Someone dumped a pregnant dog off here around 10 years ago. She had 8 gorgeous pups. When they were too small to leave the nest, she would lick their feces and urine off them. She kept them clean but I had no idea they did that. Actually a lot of dogs will eat manure so their digestive system must handle about anything.
Cats do the same with their kittens; apparently when the kittens are really young licking their rear ends stimulates them to go and they won’t do it on their own. So, no thanks, they’ll just have to settle for head rubs.