My daughter has a very bloodhound-like sense of smell. She does not, however, obtain the adulterated ability to refrain from vocalizing to the world when she discovers a malodorous function. Case and Point:

My wife is in the kitchen preparing dinner. I was outside. My daughter is preparing a "tea party" on the living room table. All is quiet. Emma is talking to herself as she runs to her room to get more plastic food servings for her party, then she returns. She is only wearing her panties and her most treasured plastic princess glass slippers, her attire for our home during most of the summer this past year.

When she smells or sniffs, she practically snots out of her nose instead of inhaling. It is amazing she catches any scent at all, maybe it absorbs into other locations in her body? Like a reptile or shark. Anyways, she definitely was tracking something down at this moment.

With a curled up nose she turns to Abbie in the kitchen and says, "What dat smell?".
"I don't know, what does it smell like?" my wife answers.
"I tink it is my butt!" Emma ejects.
"Did you fart?"
"Yeah."

And she continues with her lady-like function in the living room. End of Story.

SINGLE LINE POINT: We call the tummy baby Scoobie. Emma calls it "Doobie". No, we are not reefers, but it sure is funny.