Marriage manual author and semen sniffer Theodoor van de Velde has a line in his book.

Sensory neurons die a programmed death you literally have a new sense of smell every month.

Perhaps dogs and rhinos and other smell oriented animals smell in color. And the argument would be exactly the same as for the bats.

And in this, towns begin to rethink how they organize the urban landscape, so that people are encouraged to slow down and smell the roses and connect with one another.

Really when we think of our senses, or when we think of the loss of the sense, we really think about something more like this the ability to touch something luxurious, to taste something delicious, to smell something fragrant, to see something beautiful.

A dog that had never met capric acid would, perhaps, have no more trouble imagining its smell than we would have trouble imagining a trumpet, say, playing one note higher than we've heard a trumpet play before.

This particular object that many people love so much is actually based on kind of a scientific experiment the fact that bees have a very strong olfactory sense, and so much like dogs that can smell certain kinds of skin cancer bees can be trained by Pavlovian reflex to detect one type of cancer, and also pregnancy.