These animals’ ability to control light renders them almost invisible

http://www.bbc.co.uk/earth/story/20170622-the-animals-that-are-almost-invisible

This photographer spent 20 years diving off the coast of Japan, photographing nearly invisible creatures

http://www.nationalgeographic.com/photography/proof/2017/06/secret-world-of-plankton/?utm_source=Twitter&utm_medium=Social&utm_content=link_tw20170621photo-planktongallery&utm_campaign=Content&sf90841955=1