What's going on down in the ocean depths? The ocean covers around 70 percent of the Earth and is so mysterious. We go diving, descent in submarines, satellite and rovers - everything to explore the hidden treasures of the ocean. Let's take a look at these 10 unusual creatures lurking in the ocean depths. You'll se a giant phantom jelly from the ocean's midnight zone, a goblin shark that looks super scary, a whitemargin stargazer that has eyes right on top of its head. Trust me, you don't learn about these 10 nightmarish sea creatures at school...