25K views · 734 reactions | Look closely at the compound eyes on this butterfly - finding them in your garden is always a great indicator of a solid ecosystem! 曆 #animal #conservation #awesome | Ivan Carter | Facebook

139K views · 6.6K reactions | The wings of blue morpho butterflies are iridescent blue — but contain absolutely no blue pigment! The color is achieved by tiny scales on the wings that have ridges, ribs and other structures that play with the physics of light at the nanoscale to reflect only bright blues. | Center for Biological Diversity | Facebook

2.6K views · 47 reactions | The compound eyes found in insects and some sea creatures are marvels of evolution. There, thousands of lenses work together to provide sophisticated information without the need for a sophisticated brain. Now, engineers and physicists at the Penn have shown how liquid crystals can be employed to create compound lenses similar to those found in nature. | University of Pennsylvania | Facebook