A "Tree Nut"

Green husk over brown walnut shell

Walnuts are very intriguing. They are shaped like the skull and contain hemispheres. Walnuts are a tree nut with high density nutrients, especially proteins and essential fatty acids. The walnut fruit is enclosed in a hard green husk which is inedible. The nuts must be processed and stored very carefully and properly at -3 - 0 degrees C. Never eat a spoiled walnut.