Suppositions on The Sense of Smelling.

We might very naturally suppose, from the fact of the horse's applying his nose to every thing new to him, that he always does so for the purpose of smelling these objects. But I believe that it is as much or more for the purpose of feeling; and that he makes use of his nose or muzzle, (as it is sometimes called.) as we would of our hands; because it is the only organ by which he can touch or feel anything with much susceptibility.

Fonte: Tamming Horses