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.
A butterfly's most dramatic anatomical features are its wings. They're made of an extremely thin, transparent material called chitin stretched over a series of vein-like structures. The forewings are closer to the butterfly's head and are roughly triangular.hen the butterfly emerges, its proboscis is in two separate pieces that join together with tiny hooks and fringes. The butterfly has to curl and twist the two halves of its proboscis to create one drinking tube. All this work takes place before the butterfly even takes flight, and it doesn't end there.