Exploring Jawless and Cartilaginous Fish
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Published 2021-11-02
Cartilaginous fish and jawless fish are quite different to bony fish. These two groups, also known as Chondrichthyes and Agnatha respectively, build their skeletons using cartilage. A tough but flexible tissue, lighter than bone, that allows them to maintain neutral buoyancy without any need for a swim bladder. In this video we'll take a look at the differences between jawless fish and cartilaginous fish, and discuss their adaptations and behaviours within the deep sea ecosystem.
Watch Part 1 - Bony Fish: • The Incredible Diversity of Bony Fish
00:00 - Introduction to Cartilaginous Fish
01:52 - Agnatha - Jawless Fish Structure
02:34 - Agnatha - The Hagfish
03:45 - Agnatha - The Lamprey
04:45 - Evolutionary History of Jawless Fish
05:50 - Elasmobranchs - Structure of Sharks
06:29 - Elasmobranchs - Shark Feeding Behaviours
06:59 - Elasmobranchs - The Cookie cutter Shark
07:15 - Elasmobranchs - The Goblin Shark
07:45 - Elasmobranchs - The Megamouth Shark
08:25 - Elasmobranchs - Scavenger Sharks
09:02 - Elasmobranchs - The Greenland Shark
09:55 - Elasmobranchs - Structure of Rays and Skates
10:27 - Elasmobranchs - The Lifestyle of Rays and Skates
10:57 - Evolutionary History of Cartilaginous Fish
11:29 - Holocephali - Structure of Chimaeras
12:35 - Holocephali - Pelagobenthic Lifestyle of Chimaeras
13:10 - Holocephali - Chimaera Feeding Behaviours
13:55 - Conclusion
CHECK OUT OUR DEEP SEA WEBSITE: naturalworldfacts.com/deep-sea-hub/
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 MBARI, WHOI and the Ocean Exploration Institute, along with various other YouTube sources.
Music Used:
Alone We Have No Future by Ludvig Forssell
The Face of Our New Hope by Ludvig Forssell
An Endless Beach by Ludvig Forssell
Fragile by Ludvig Forssell
A Final Waltz by Ludvig Forssell
#deepsea #wildlife #nature #documentary #ocean #marinebiology #science #biology
Bibliography:
sites.google.com/site/swimmingwithdiefishes/riley-…
www.sharksider.com/understanding-cartilaginous-fis…
saveourseas.com/update/chimaeras-the-sharks-forgot…
All Comments (21)
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Three cheers for Leo Richards, our generation's David Attenborough! Long may he narrate!
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Lamprey are essentially sea leeches, quite interesting how different species resemble each other.
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as an artist student, those ecosystems are a gold mine of trully amazing shapes and ideas... Keep on the great work, your passion becomes ours!
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If horror games had jawless fish, they would be so much more terrifying. Imagine a game like subnautica but with some water leeches. Anyway, great video as always!
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Love your vids so much man. Absolute hits every time. Cant believe you dont get millions of views. Perfect clean editing. Calm ambience. Great voice. Just exquisite my man keep it up.
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My son and I have learned so much from watching these videos, and as always this one does not disappoint. The way the narrator explains the subject makes it easy to understand. Great job as always!
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Your videos inspire me so much! When I was little I was often watching a documentary about the fjords in northern Europe. There where many colourful corals and fish. I watched it atleast 20 times bc I was memorized by the beauty. (My parents accidentally deleted it.) I'm getting the same feeling in your videos. I'm even thinking about studying Sea biology...
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Something else that’s interesting about shark scales is they also prevent barnacles from attaching since the barnacle can’t find a smooth surface to land on which has also influenced the research into a type of covering that acts like shark scales to place on boats and ships to reduce drag and prevent barnacles from attaching.
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I never knew rays had those treelike cartilage skeletons. Amazing.
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As always, I'm thrilled when I see a new upload. These videos are so well done.
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You literally made me fall in love with the deep sea 😍 keep doing what you do....you're inspiring lots of people to love and embrace the deep sea and the role of creatures in the ecosystem ❤️❤️❤️ Showing us that it's also beautiful waaaaay down there ....sending lots of love
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Thank you for uploading. Recently moved into an apt by myself and I am very anxious. Your content relieves my anxiety 10 fold. And keeps me from going crazy. Thank you thank you thank you. I can’t stress it enough
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These videos make me regret not pursuing a career in marine biology as that's what I majored and got a degree in. I love the oceans and the creatures dwelling within them and these videos really get me thinking. I may not be able to become a marine biologist any more but I still like to create art inspired by the deep ocean and its many inhabitants. At least I can still do that!
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Jawless fish: or as an intellectual like myself would call them - mariana maggots
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Clicked because I saw my favorite shark, stayed because I wanted to learn more. Good video.
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Whenever it’s my turn, I choose a bunch of your videos for family movie night. Please don’t ever stop creating such greatness! Cheers 🙂
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I love watching these, they feel like Planet Earth but calmer and more bite sized. I’d love to see you explore the creatures and evolutionary strategies of freshwater lakes!
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Thank you for putting all the work you do into these videos, the production value is insane!
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this reminded me of my high school zoology class, where we dissected a lamprey for weeks on end... the smell was awful, the lampreys were quite scary, but the knowledge and experience still remains. great video!
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Death stranding was one of the games that made me fall in love with the ocean, its so cool to see the game that brought me to your channel has circled its way back to me through its music :)
