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.
They evolved from moths in the latest Cretaceous or the earliest Cainozoic. The earliest known butterfly fossils date to the mid Eocene epoch, between 40â50 million years ago. Like moths, butterflies have four wings covered with tiny scales. When a butterfly is not flying, its wings are usually folded over its back. The wings are patterned and are often brightly coloured. There are many different kinds of butterflies.