Why: There is some evidence that omega-3 fatty acids may ease anxiety symptoms and lift your mood by lowering levels of stress chemicals such as adrenaline and cortisol in the body. Caned fatty fish, such as tuna and salmon, walnuts, and flax seeds are all great sources of omega-3 fatty acids.
As you may already know from reading How Butterflies Work or Where do butterflies get their striking colors?, butterfly wings are made of very thin layers of a hardened protein called chitin.
Stranger yet, no moth or butterfly eats solid food (though some butterflies drink nectar); some can not even take in moisture. The life span of most butterflies is very short, usually just enough to lay their eggs. Many butterflies migrate from one region to another, either individually or in swarms.