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.
Have you ever wondered if caterpillars have teeth? How high butterflies can fly? On these pages, find in-depth information about the behavior, appearance, life cycle, and handling of butterflies and moths. Questions are answered by renowned lepidopterist Paul Opler (author of several Peterson Field Guides).