What bakes Naturalists?

If you want to become a naturalist or if you want your kids to become naturalists here are the ingredients for the recipe:  

1. Travel the world
2. Study abroad
3. Major in psychology or biology

Mix them all together and you have high chances to get a naturalist.

Why will it work? 

1. Well the more you travel the more you are exposed to the diversity of cultures, customs, and religions. 
2. When you study abroad it is similar to traveling abroad but the exposure is much longer and hence it creates much deeper experiences. Being part of another family, adopting local customs, possibly learning a new language or becoming fluent in a foreign language, enjoy the local cuisine, make new friends, and much more.
3. Given that supernaturalism is created and is happening in people's minds, becoming well versed in the science of psychology that explains how our mind works would dispel most such notions and replace them with sound empirical psychology grounded in evolutionary theory. Studying biology does much the same but to a somewhat lesser extent, probably because it doesn't deal as directly with the mind as psychology does.