Phylum Mollusca Part 4: Class Cephalopoda (Squids, Nautiluses, Cuttlefish, and Octopuses)

We now arrive at the most famous of the mollusks, the cephalopods. These include squids, nautiluses, cuttlefish, and the fascinating octopuses. These creatures are the largest and most intelligent invertebrates on Earth. Let's learn all about them!
Script by Ryan Helcoski
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[@benzulmang1151]

I wonder if this dude know how many people he's gotten through college and how familiar his content feels, its comforting in a way idk maybe I'm just a nerd

[@glennpearson9348]

Holy tentacles, Batman! What a fun presentation on cephalopods. I remember the first time I saw a live octopus when first learning to scuba dive off the shore of the Florida panhandle. It absolutely freaked me out. They are such graceful creatures and they are sneaky smart!

[@alistaircorbishley5881]

17:15 you forgot to add in their ability to predict Football World Cup results as well!

[@anr1593]

Thanks Dave, very informative. When I was a kid, the octopus at the Academy of Sciences in SF got out of it's tank and walked across to the adjacent Dungeness crab tank and broke into it. When the staff arrived in the morning, they discovered the octopus had eaten all the crabs. They are truly amazing, and I stopped eating them. Thanks again.

[@TundeEszlari]

You are a very good KZbinr.❤

[@Linguae_Music]

Dave is a true master of pedagogy. I envy him.

[@silviu-georgepantelimon1423]

That was a great presentation, especially the anatomy of cephalopods shows how evolution can develop different body-plans in lineages separated by millions of years like in cephalopods and us.

[@kemicalhazard8770]

I never knew some Mollusca were so incredibly intelligent! Very educational and interesting :)

[@Arena1999]

We finally made it, here. The most intelligent molluscs of their respective phylum. Octopuses, especially, are really fascinating creatures.

[@ManILoveFigs]

fun fact about cephalopods is that it is mistakenly said their eyes and vertebrate eyes are an example of convergent evolution, even though it is a better example of parallel evolution as both eyes took a similar evolutionary path from the same starting point.

[@athenaclark2567]

Learning about cephalopods is always fun! They’re my favorite! 🐙 🦑

[@randal_gibbons]

They certainly are delicious. JK

[@ricardoludwig4787]

I really wonder how long it would have taken cience to figure out cephalopods are mollusks if nautilus had gone extinct. So much of their morphology is different, i wouldn't be surprised if it only happened in the 1950's

[@idle_speculation]

Fun fact: coleoid cephalopods can control their own gene expression by using special RNA messages. This also means they have an extremely low rate of mutations, and thus evolve slowly.

[@DeepSpace145]

Great ! Thank you Dave ! by the way, mollusk eye (compared to a vertebrate eye) is one of the best examples on how convergent evolution works.

[@paleocat6354]

Love this lecture

[@LanceHall]

I wonder if the Creationist Octopi deny they are descended from the older mollusca.

[@PoseidonDiver]

I'm convinced the only reason that octopus\squid are not the top of the foodchain is because they have such short life spans. Can you imagine if something like the Humboldt squid had evolved over 60 million years with an average life expectancy of 60 years instead of 5

[@gabrielalejandrodoldan4722]

The Kraken!

[@larry3591]

You are the boss mister

[@KB378]

I know it may not seem like it.. but this is how you fight religious fundamentalism.

[@charliekezza]

I love cephalopods

[@mr.rainbowlovescoffee]

I am always 25% smarter when I see your videos, thank you very much.

[@amitsinghbhadoriya6318]

Thanks 🙏

[@wombatkins]

Yay i was waiting for this

[@RasmusKarlJensen]

Will you ever do a video on arachnids?

[@ProfessorDaveExplains]

Yes, this series will cover every major animal group.

[@RasmusKarlJensen]

@@ProfessorDaveExplains Nice! Looking forward to it.

[@skelelun]

yooo splatoon real life (jk) no seriously, cephalopods are so cool. the cuttlefish is my favorite animal of all time. they're absolutely gorgeous and i love their shape. im really happy this video was made because it's such a good reference as a cephalopod lover. not too long and easy to understand!

[@PotatoChips-jy9pk]

They're cute :D

[@PotatoChips-jy9pk]

OH MY GOD IT'S SQUIDWARD

[@timothymoore8549]

Cephalopods are the best animals.

[@ocnb]

Yarrrrr, here be krakens!

[@frocurl]

I love octopus

[@jonathanpicket124]

Cephalopods are amazing! 😅

[@scottprendergast5262]

16:00 Beautifully grotesque 😅

[@vikrantpulipati1451]

I have been strangely hyped for this video.

[@Vegan_Ape_2018]

I love cuttlefish and octopuses. Cephalopods are awesome. God clearly is a Cephalopod since they're so badass. 😂

[@OldBenOne]

If they also had opposing thumbs, we'd be in trouble.

[@secularidiot9052]

Cmon, EVERYONE knows that octopuses actually came from outer space!

[@AnarchoReptiloidUa]

🐙

[@sciencenerd7639]

this is great, thanks

[@alistaircorbishley5881]

This is the Molusca series I have been waiting for 🙌

[@Naomi.Robertson]

Octopuses freak me out

[@nebulan]

I kinda want a pet octopus now but i know i wouldn't be able to properly care for it

[@diverguy3556]

There is a youtuber called The Reef Doc who keeps octos as pets. He has some really great content and advice on keeping them, totally worth a look.

[@clivedavis6859]

We used to play with one in a rock pool. Got to know each other quite well.

[@nebulan]

@@diverguy3556 that octopus, birdie, is so cute!

[@PequotWhiteHawk]

Yar be forgetting bout thee ol cracken 🤣Great video 🤙👍ps. Thanks for taking out flat earth dave

[@Mycorruptedmind]

The mom octopuses make me sad

[@rando943]

Thank you biology Jesus

[@mrrishiraj88]

👍🙏💯

[@waelfadlallah8939]

Also here? Come on!

[@yoBigWave]

Aliens no doubt 😂

[@gomatgo]

mindflayer propaganda

[@babotond]

12:15 that is so romantic ❤❤

[@RuminatingStoner]

If one of the secondary hearts fail, can an octopus survive?

[@2ahdcat]

Squidward 2024! lol

[@waelfadlallah8939]

Don my man you here ?

[@desmond3828]

Stop procrastinating!

[@KDestroyer9]

Thank you for not saying octopi …among many other things much more interesting and awesome than that lol

[@stephenbass7409]

You forgot to mention that they are delicious 😋 😂

[@babotond]

sneaky femboy octopus, lol🤣🤣🤣🤣🤣

[@valkeakirahvi]

0:55 You do realise that Samoans and Hawaiians are Polynesians, and their share the same cultural origins?

[@kingmenelaus7083]

Super fascinating yeah, but um, where does Jesus come into this?? I'm confused?? Didn't God magic these things into existence??

[@WillPOnya]

"these things" were made after their own kind. Which means they exist elsewhere and were transported to Earth.

[@OldBenOne]

I'd say if they were made "in his own image" we"re talking the Flying Spaghetti Montser.

[@inappropriatejohnson]

Beg pardon. Cthulhu is no more fictional than Yahweh, is a better conversationalist, and has far less blood on his......tentacles. Edit: tentacles, arms, or toothed-suckers, I don't recall. Been a long time since I read the Holy text.

[@Gfish17]

Cthulhu's head Resembles a octopus but he has a humanoid body.

[@Gfish17]

So all because Octopai happen to be intelligent we can't eat them?

[@ProfessorDaveExplains]

I mean yeah, kinda. That's how I feel about it.

[@Gfish17]

@@ProfessorDaveExplains I have had octopus. If you can get past the suction cups they are delicious. They should be farmed not protected. They TASTY🐙🦑

[@user-yx3cg7le5n]

The octopus was gifted with his tentacles and he knows that and has no time to even assume the octopus lives on a spinning ball. Furthermore we have exactly no idea why creatures do what they do but they might know exactly what they are here to do. They arnt mindless creatures like only our perception allows us. We could know the real reason why we are here like they know because they are not manipulating themselves to go against themselves like some entity that isn’t in the physical but in an unexperience locationless. The fact that the earth takes place in a steady flat location is that of an experiment and what exactly is bellow and what us above the waters above but almost no where to go because this is where insanity comes from

[@ProfessorDaveExplains]

Stay away from my tutorials, troll.