The Dead Zone

Just before hitting the bottom of the Blue Hole in Belize, the French explorer Fabien Cousteau and his team bumped into something not-so-ordinary that no creature can survive; a 20-feet thick lethal layer of hydrogen sulfide. But the team needed not to worry as they were in safe hands and it was now time to test one of the submersible’s high technology before hitting the bottom of the Blue Hole. They made it sure whether it was safe to proceed from this point or not by discerning the quality of the water and measuring the oxygen levels. They could see a number of carcasses including crabs, conch and many other marine lives that rammed into this thick wall of hydrogen sulfide, eventually running out of oxygen.