In open water, there is often no place to hide. Some sharks have overcome this problem by making themselves invisible to both prey and predators, according to a new study. Light trickery permits the optical illusion, described in the current issue of the Journal of Experimental Marine Biology and Ecology. The findings represent the first experimental tests of shark luminescence.Nature is amazing.
The article goes on to explain that the main shark studied was the velvet belly lantern shark, which is nicknamed 'the phantom hunter of the fjords'.