THE RED SEA | Life Inside One Of Earth's Oldest Marine Worlds | 4K Documentary

Between Africa and Arabia lies a long blue channel where not a single river flows in, and every year the desert heat lifts more than six feet of water from its surface. What stays behind is one of the saltiest seas on the planet, and yet beneath its bright surface the water is full of life. How does a sea without rivers feed dugongs, mantas, hammerheads and turtles, and what has learned to live in the lakes that lie on its floor? In this film, you will discover: 🌿 Dugongs, the quiet gardeners of the seagrass meadows, and their elephant relatives 🌳 Grey mangroves that drink the sea and grow where the desert meets the water 🐢 Green and hawksbill turtles, and the hot sand that decides who hatches 🐚 Giant clams that farm sunlight, and a rare clam the first humans nearly wiped out 🦁 The lionfish at home on the reef, and how it became a global invader 🦈 Reef mantas of Sudan, hammerhead schools at dawn and oceanic whitetips by the lighthouses 🌙 The night reef: flashlight fish, Spanish dancers and coral that wakes in the dark 🧂 Brine pools, hot salty lakes on the seafloor that keep a thousand years of history A calm, slow journey from the desert shore to the deepest floor of the Red Sea, made for quiet evenings, background listening and falling asleep to the sound of the sea. 🎬 Filmed and edited in stunning 4K Ultra HD. 🔔 Subscribe to Unknown Depths for more journeys into the hidden ocean. 💬 Which creature of the Red Sea surprised you the most? Tell us in the comments. 📷 Photo: Albano et al., CC BY 4.0 · w.wiki/Yfrn 📷 Photo: Derek Keats, CC BY 2.0 · w.wiki/Yfrq 📷 Photo: Purkis et al. (2022), CC BY 4.0 · doi.org/10.1038/s43247-022-00482-x #RedSea #OceanDocumentary #MarineLife #Dugong #MantaRay #HammerheadShark #SeaTurtle #Mangroves #GiantClam #Lionfish #BrinePools #CoralReef #4KDocumentary #NatureDocumentary #RelaxingDocumentary #SleepDocumentary