Smelling is dietary --- smelling apples and/or bananas can help you lose weight.
Polar bears are able to smell a seal from 20 miles away
Slugs are good at smelling. They have four noses
Smell is, in fact, but a single composite sense with taste, whose laboratory is the mouth and its chimney the nose.
Elephants are able to smell water up to 3 miles away
Smell is that, more readily than any other channel, by which memories, imagination, old sentiments, and associations are reached.
A smell is not weightless --- on average, a smell has a weight of 760 nanograms.
Dolphins are unable to smell
Bloodhounds can track a man by smell for up to 100 miles
Smell has an altogether peculiar force, in affecting us through association... a force differing essentially from that of objects addressing the touch, the taste, the sight or the hearing.
Ants can smell well --- better even than a dog.