Bio-luminescent Spewing Shrimp

A shrimp named Acanthephyra purpurea spews a bioluminescent cloud from its mouth when attacked. The burst of bright substance is enough to put would-be predators off their mark.

The bright blue bioluminescent cloud the shrimp expels isn’t "vomit." Instead, luminous fluid probably originates in the hepatopancreas – an organ that plays roles similar to the liver and pancreas in us – and, depending on the species of shrimp, can come from the mouth or nearby organs.

Original article here.