What information do dogs get when they sniff other dog's butts?

Probably more than mere humans will ever know.

I thought it was gender and fertility.

“What did you have for lunch?”

Either the presence or the absence of trump.

This is very simple. They enjoy it. Dogs like stinky things.
People will stop to smell the roses and dogs will stop to smell the butts.

I could be wrong, but I thought it was like a social security number for dogs, as in each dog has a unique butt-smell that they can detect and remember. I’m just glad humans aren’t expected to do this.

Considering that dogs have a sense of smell is more powerful by at least two orders of magnitude I’d say smell is pretty important. Neat fact I just looked up, apparently their brain power devoted to smell is 40–50% larger than humans as well. We perceive something that smells like ass as bad but a dog may experience it as an olfactory symphony.

Identity, emotional state, diet, health, and external things they’ve come in contact with.

If it is a suitable landing pad for the red rocket.

It’s their version of a social media network – Buttbook.

^^^^ LOL!

^^Buttbook not Analgram?

“Does my shit stink worse than yours?”

I’ve seen a dog sniff another dog’s butt, then step back and growl. Hmmm.

Great article by Oliver Sacks on having an enhanced sense of smell.

@flutherother I love Oliver Sacks.

@janbb I have paperback copies of most of his books.

@flutherother Next time I’m over your way, let’s light a fire, have a pie and a pint and read Oliver Sacks’ books.

@janbb I’m in.

I always thought it had to do with identification of specific dogs. They obviously smell different, therefore their butts probably smell different, as does their pee. I know when I take my little guy for a walk, he stops at every likely spot to see who peed there and what it smells like. I call this reading his pee-mail.