Led by a scientist dubbed “the Russian Indiana Jones,” a team of divers has discovered a wondrous marine organism that changes itself from clear to a kaleidoscope of color. One of the mysteries of the seas, jelly creature Cestum veneris has a sophisticated mechanism for keeping safe from predators, wrapping itself in layers around a delicate center. That still doesn’t explain exactly why it changes from transparent to glowing colored in a couple of minutes. Could it just be for show? Team Aquitilis, from Russia, say even they can’t be sure. The spectacular effect created by Cestum veneris has garnered thousands of views and likes on Instagram, the team’s favorite way of showcasing their deep-ocean finds. Categorizing the find as a Venus girdle ctenophore, the adventurous group, led by Alexander Semenov, came upon it during a dive in the White Sea, off the northwest coast of Russia. Basing themselves at …