We humans are a wonderfully diverse species. Just think of the different languages and cultures that have evolved in different parts of the world. One aspect I find especially fascinating is the question of taste.
For example I have a strong aversion to whole olives, yet I enjoy tasting different olive oils. On the other hand I love anchovies on pizza – a choice that causes some of my friends to throw up their hands in disgust and order a plain pizza margherita with only tomatoes, mozzarella and basil.