2. Moth Eyes and Solar Panels
When scientists at North Carolina University wanted to make thin solar panels more efficient, they had an eye on moth eyes. Their panels where often reflecting some light which made them less efficient. Then the scientists noticed that moth eyes are extremely efficient in capturing light.
Research showed that this was due to their eyes being non reflective. They contained tiny microstructures that funnel light beck into the eye. The researcher decided to design synthetic that mimic the properties of the moth eyes and these nanostructures dramatically improved the solar panels efficiency.