18 March, 2015

Luminous Life - National Geographic Magazine

Luminous Life - National Geographic Magazine: Speaking of luminous lunch, here’s a weird problem. As I mentioned, many animals that live in the open ocean have evolved to be transparent, because this makes them harder to see. But if you are transparent and you eat something glowing, all of a sudden—oops—you are highly visible. Which is why so many otherwise see-through animals have guts that are opaque.