Planet Earth -- The mystery of the Deep - The legendary DEEP Sea Shark
We live on a planet mostly plunged into cold darkness. Most people know that two-thirds of the Earth’s surface is covered with water, but have you ever stopped to think about how most of that area lies in the deep dark where no sunlight ever penetrates? The fact is that the majority of our planet lies in a cold, eternal night; a practically unexplored alien world deep under the sea that lies in perpetual darkness.