The human anus, or butt, is actually cleaner. The mouth excretes germs and bacteria of a more potent manner. But be aware of the fact that you are way more likely to get sick from having someone's anus in your mouth than having someone's spit in your mouth.
You have the most in your mouth and in your colon.
a million germs are in your mouth
150 million germs live in your mouth
The anus for a jellyfish is its "mouth".
They have no anus and expel undigested matter through the mouth.
I don't think it is because the anus has tons of germs!! Plus it probably won't be pleasant...
well yeah most mouth wash but mainly germs and bacteria.
Yes, roundworms have a mouth for ingestion of food and an anus for excretion of waste. They form a complete digestive system with both openings.
Millions and Billions FACT: There are more stars in the sky than bad germs in your mouth
The mouth of an earthworm is located on the anterior end, closer to the clitellum, and is typically smaller and more round in shape. The anus is located on the posterior end and is larger and more oval in shape. You can also observe the direction of the crop bands, which point towards the mouth and away from the anus.
no its not cleaner because the Dogs have a lot more germs than we do because Example: humans throw a ball and we throw it with our hands and our hands have the most germs so when you throw the ball the dog picks up the germs. hope i helpedd :D