Trivia.com
Aardvarks can close their nostrils while digging.
Trivia.com
Camels are able to shut their nostrils during a desert sandstorm
Trivia.com
Nostrils work one at a time, not simultaneously
Trivia.com
Breathing is lopsided --- 85% of people only breathe out of one nostril at a time.
Trivia.com
Only 30% of humans can flair their nostrils.
See also
.com