Sanctuaries in the Dark, a relaxing Deep Sea documentary. Thank you to Opera for sponsoring Natural World Facts - download Opera for free at https://opr.as/Opera-browser-NaturalWorldFacts Sink into this relaxing deep sea documentary, a calm descent (structured for deep sleep or relaxation) through some of the most iconic species and features of the twilight zone (mesopelagic), midnight zone (bathypelagic), abyssal plain, and hadal trenches. Designed for sleep, study, focus, meditation, and ASMR, this film blends ocean ambience, gentle narration, and fascinating scientific knowledge to give a “space documentary” feeling (but underwater and therefore far superior, wink wink). Meet real deep sea creatures: sixgill sharks, ghost sharks (chimaeras), bigfin squid (Magnapinna), telescope octopus, siphonophores (Bathyphysa), drifting jellyfish, and the quiet clean-up crew of the abyss... sea cucumbers and giant isopods. Visit hydrothermal vents, where chemosynthetic microbes power oases of life with giant tubeworms (Riftia pachyptila) and Pompeii worms; glide over seamount coral gardens and ancient sponge grounds; witness wood falls and whale falls turning darkness into cities of life; and pause at octopus nurseries warmed by gentle seepage. If you love interesting science videos, relaxing nature films, ocean sounds, or space vibes for sleep, this is for you; a calm, immersive journey where light is a language and the sea feels as vast as the cosmos. This film features only real footage of deep sea creatures, filmed by the incredible ocean exploration institutes of NOAA and Schmidt Ocean Institute. Support my work on Patreon: https://www.patreon.com/naturalworldfacts Get your hands on DEEP SEA MERCH: https://naturalworldfacts.myshopify.com/ Written, narrated and edited by me, Leo Richards. This channel (Natural World Facts) is a solo passion project dedicated to exploring the wonders of the natural world and telling stories that inspire! I'm so excited to share this series with you at last. Schmidt Ocean Institute (SOI) is a non-profit oceanographic research foundation that has been pioneering deep-sea research and discovery since 2009, on board their old vessel RV Falkor and their new RV Falkor (too). Their remotely operated vehicle (ROV) SuBastian is equipped with a suite of sensors and a 4K camera that has illuminated the depths and live-streamed dives around the world. Most footage shown is filmed and provided by SOI. Huge thank you to them for contributing their footage, and working with me to create this series! Check out their website: https://schmidtocean.org/ Music Used: Most tracks sourced from Artlist, aside from a number of wonderful original elements, themes and motifs crafted by the fantastic Robb Taylor ​⁠(@robbtaylormusic on Instagram). Check out his website at robbtaylor.org 00:00 - Introduction to The Deep Sea 02:28 - An Ocean of Sound 04:26 - The Settlers - Marine Snow & the Abyssal Plain 06:40 - The Settlers - Creatures of the Deep Sea Floor 07:22 - [Sponsored Interlude] 08:46 - The Settlers - Sea Cucumbers & Sea Pigs 09:32 - The Settlers - Giant Deep Sea Isopod 10:12 - Deep Sea Feasts - Wood Falls & Shipwrecks 12:43 - Deep Sea Feasts - The Wreck of Endurance 15:09 - Deep Sea Feasts - Whale Fall Ecosystems 16:52 - The Visitors - Creatures from the Void Above 18:11 - The Visitors - Sixgill Sharks 18:50 - The Visitors - Chimaeras (Ghost Sharks) 19:55 - The Visitors - Magnapinna (Bigfin Squid) 21:51 - The Visitors - Bathyphysa (Flying Spaghetti Monster Siphonophore) 24:02 - The Sanctuaries - Hydrothermal Vents 25:51 - The Sanctuaries - Chemosynthetic Microbes 26:40 - Hydrothermal Vents - Giant Tube Worms (Riftia pachyptila) 28:16 - Hydrothermal Vents - Pompeii Worms (Alvinella pompejana) 29:06 - Hydrothermal Vents - Deep Sea Skates 29:33 - The Sanctuaries - Brooding Octopuses 31:10 - The Sanctuaries - Deep Sea Coral Gardens 32:30 - The Adrift - Deep Sea Midwater Organisms 33:29 - Deep Sea Camouflage - How to Hide in the Open Water 35:53 - The Adrift - The Telescope Octopus (Amphitretus pelagicus) 38:22 - The Adrift - The Giants of the Midwater Void 39:37 - The Adrift - How Jellyfish Work 41:09 - The Deep Ocean is Beautiful CHECK OUT MY DEEP SEA WEBSITE: https://naturalworldfacts.com/deep-sea-hub/ #deepsea #wildlife #nature #documentary #ocean #marinebiology #science #biology