This rare octopus is transparent letting us see its brain and internal organs.

Wu Yung-sen is a photographer and blackwater diver from Taiwan. He takes a very unique type of underwater photograph that lets us see deepwater creatures we normally would never get to see. To take the pictures, Yung-sen goes to a place in the ocean where the bottom is two-miles deep or more. At this depth, the water is so dark, it is completely black (thus the name - blackwater diving). He then lowers lights into the water and dives under the sea to a depth of about 50 meters where he waits for the sea creatures to show up. Yung-sen says the lights draw plankton to the area. The plankton then draw larger animals - jellyfish, squid, and fish - and Yung-sen quickly snaps the picture. Below is