The first ever footage of mating blue ring octopus, a creature loaded with doze of a hellish poison, enough to kill 26 adult persons at a time. Underwater creatures, shifting color and pattern to fade from eyes… Explanation of why anemone fish change gender… Behavioral aspects of the shoaling fish like barracuda and jackfish… Mantis shrimp, strong enough to smash a plate glass of an aquarium into pieces… Craps that eat like humans on hosting corals and anemones… The footage of predating poisonous lion fish and squids that had shunted from swimming to walking as a result of the evolution… Many other amazing underwater stories within 47 minutes…