The Alien World of Deep Sea Molluscs

Deep Sea Molluscs. Go to for a free trial, and when you’re ready to launch, go to to save 10% off your first purchase of a website or domain. Molluscs like cephalopods and gastropods dominate the marine world. Inhabiting nearly every ecosystem from shallow reefs to deep sea vents and the pelagic midwater, the success of molluscs is unparalleled. Nearly 25% of all marine organisms are molluscs, including such oddities as sea snails, nudibranchs, and coleoids like squid with their specialised tentacles. Even the snails you might find in your garden belong to the molluscs, for this is the only phylum with species found in the sea, freshwater and on land. A testament to their adaptability. With an estimated 85,000 living species known to science, the abundance and diversity of molluscs is what allows them to occupy a great many niches and habitats, and diversify into an assortment of shapes and sizes. The smallest meiofauna molluscs grow to just 0.4 mm long, while in the pelagic deep they dominate as voracious predators, looming out of the dark. This is the alien world of molluscs. 00:00 - Introduction to Molluscs 01:50 - Anatomy of Molluscs - Basic Body Plan 02:59 - Anatomy of Molluscs - Adaptations of the Foot 04:01 - Anatomy of Molluscs - Adaptations of the Shell 04:45 - Gastropods - Anatomy and Adaptation 05:49 - Gastropods - Life in the Intertidal Zone 06:39 - Gastropods - Defence Mechanisms 07:28 - Gastropods - The Scaly-foot Snail 08:29 - Gastropods - The Nudibranchs (Sea Slugs) 09:45 - Bivalves - Anatomy and Adaptation 10:20 - Bivalves - Infaunal Lifestyle 11:26 - Bivalves - Epifaunal Lifestyle 12:09 - Bivalves - Mussel Beds of the Deep Sea 13:46 - Cephalopods - Anatomy and Adaptation 14:31 - Cephalopods - Evolutionary History 15:43 - Cephalopods - The Coleoids (Squid and Octopus) 16:41- Cephalopods - Argonaut Octopus (Paper Nautilus) 17:33 - Cephalopods - The Vampire Squid 18:41 - Conclusion CHECK OUT MY DEEP SEA WEBSITE: I do not own any of the footage. I write the script, narrate, and edit what footage I can find. Footage used belongs to the incredible marine conservation societies of Schmidt Ocean Institute, NOAA, MBARI, WHOI and the Ocean Exploration Institute, along with various other YouTube sources. Music Used: Light by Jorge Mendez Dreams Become Real by Kevin MacLeod Lost Frontier by Kevin MacLeod Voices by Patrick Patrikios Nocturne by Asher Fulero Solitude by Jorge Mendez #deepsea #wildlife #nature #documentary #ocean #marinebiology #science #biology Bibliography: