nose
nostrils
A pigs 'snout'
It is another source of air, the hair found in our nostrils will clean the air before it enters into our diaphragm.
Our nosrils is another way to breath. Some prefer the nose than the mouth. The nostrils have short hairs in them that can keep away dirt and other things. That is why nostrils is also safer to use.
The more common name for nares is nostrils.
The two breathing openings in the nose are "nostrils."
A horse has two nostrils, one on each side of its nose.
They have two nostrils
The platypus's nostrils are on its bill.
The openings in your nose are the nostrils.
It is said that the average human has four nostrils. You can only see two of them though; How do you think we breathe in through our mouths? Fish have a set of nostrils to breathe in, and "exhaust pipes". If we evolved from fishes then that means we still have another pair of nostrils. While we evolved, they went back into the head to become internal nostrils-allowing us to breathe in through our mouths. To smell things we only use our external ones though. Apparently
Yes, cows do have large nostrils. These large nostrils will allow more air into the lungs than smaller nostrils would.