Text: Blue in Nature. Structural Colour. Some animals appear as a certain colour because of external structures in their feathers, shells, or scales. An image of a Banded Purple Wing Butterfly, A Blue Jay and a diagram indicating how blue light reflects off a feather into an eye.

For #Animals and #Insects displaying blue is a structural-engineering evolution. The #BandedPurpleWingButterfly and #BlueJays manipulate the structural layers of their scales/ feathers to scatter blue light back to our eyes. www.youtube.com/watch?v=3g24...
#FunWithNature #RainbowWonderful #Blue