This article from the NY Times introduces us to the amazing world of how animals in the open ocean become transparent in order to hide in plain sight. The strategies employed include using mirrors, light shows, and transparent guts. Transparent creatures near the oceans surface run the risk of getting their innards sunburned so they produce internal sunscreen for their organs, which in turn makes them more visible to predators. It's a freaking cool world. http://www.nytimes.com/2014/08/19/s...n®ion=bottom-well&WT.nav=bottom-well&_r=0#