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Sakura

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So today's blog is going to be about octopus, the most intelligent invertebrates in the ocean. I'll do some quick facts, as well as some info about how smart these guys are, and go over some ways to tell octopus apart from squid. There's so much I'd like to cover about them, but I don't want to write hundreds of paragraphs, and it would be super easy to with these guys. They have complex nervous systems, advanced camouflage abilities, and remarkable problem-solving skills, they challenge everything we think we know about animal intelligence and are very interesting little guys to be around or research. 

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Let's do a few fun facts about these guys first:

  • An octopus has three hearts. Two pump blood to the gills, and one pumps it to the rest of the body.
    Fun fact: the heart that pumps to the body actually stops beating when they swim, which is why they prefer crawling.
  • Octopus blood is blue because it contains hemocyanin, a copper based molecule that helps transport oxygen in cold, low oxygen ocean environments.
  • About two-thirds of an octopus’s neurons are in its arms, not its brain.
    Each arm can taste, touch, and even move semi-independently so it’s almost like they have eight tiny brains.
  • Some species, like the Mimic Octopus, can impersonate other sea animals such as lionfish, flatfish, and sea snakes.
    They can change color, texture, and even body shape in seconds.
  • Octopuses can open jars, navigate mazes, and remember solutions. They’re considered among the most intelligent invertebrates on Earth.
  • Because they have no bones, an octopus can squeeze through any hole larger than its beak, which is about the size of a coin in many species.
  • Each suction cup can taste what it touches. That's the equivalent to if you could taste with your fingertips. 

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Octopus vs. Squid: Knowing the difference. 

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Octopus:

Has a round, soft body. 
Mostly found on the sea floor. 
An Octopus has a rounded shaped head. 
Octopus have eyes on the top of their heads. 
They are solitary creatures and do not live in groups. They can be seen with babies sometimes, as they care for their young. 
An Octopus only has 8 arms, and does not have tentacles like the squid does. 

Squids:

They have a very triangular shaped head and their bodies are long as opposed to the Octopus, which is more round. 
Squids have 8 arms and 2 tentacles. 
Their eyes are on the sides of their heads. 
Squids have been known to live in groups and can often be found with other squid. 
They are usually found in the open ocean and not on the sea floor like an octopus. 

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The smartest animal of the ocean?

Octopuses are considered the most intelligent invertebrates on Earth, with complex nervous systems and around 500 million neurons distributed throughout their bodies. Unlike most animals, a large portion of their neurons are located in their arms, allowing them to process information and move semi-independently. This unique setup contributes to their impressive problem-solving abilities. In laboratory settings, octopuses have been observed opening screwtop jars to reach food, navigating mazes, recognizing individual humans, and even escaping from secure tanks. They are capable of learning through observation and remembering solutions to tasks long after first encountering them. Their intelligence makes the octopus one of the most remarkable thinkers in the ocean.

When faced with a new obstacle, an octopus will explore it with careful, deliberate movements, testing and adjusting until it finds a solution. Studies have shown they can distinguish between shapes and patterns, remember successful strategies, and adapt when circumstances of their environment change. Their ability to rapidly camouflage by processing visual information and altering their skin in real time also reflects advanced neural control. Rather than reacting automatically, octopuses demonstrate curiosity, memory, and problem-solving skills that suggest a highly developed and independently evolved form of intelligence.

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Hope you guys enjoyed reading this, and walked away with a little more info about octopus!~ 

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Edited by Sakura

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1 hour ago, Zariel said:

Heck yea! This was fun to read. I love octopuses they are cool to watch do stuff. I've seen some vids of them unlocking doors and going through really small holes. 

ooo yeah, I saw one a few nights ago on an Insta video tbh, it went through this TINYYYY hole, and I know they can do that because they have no bones but it's always like wowww every time I see it lol

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33 minutes ago, Eris said:

Which one can I eat, squid or an octopus?

You can eat both lol

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I've eaten octopus before too @Zariel, was not a fan.

This was a cool entry, Serey! I knew octopuses are smart but I didn't know they could solve puzzles and problem solve. That's really cool and a little weird too. Makes me wonder what else they are capable of. 

Are they smarter than dolphins? 

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That was another really interesting and informative blog entry. I've never really thought much about octopuses or squids but you've given me a whole new perspective on them. If asked I would never have said that octopus were among the smartest and most intelligent marine creatures.

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I didn't know they were that smart either, although I've heard they were pretty intelligent I didn't know it was to that extent. 

9 hours ago, Zariel said:

I tried octopus once and I thought it was pretty gross. 

Me either. It had an extremely "fishy" taste to it, far more than average fish.

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I don't like to eat either as well. I tried octopus when I saw it as an anime thing and I wasn't impressed lol 
Nice blog Serey 👍 I didn't know much about them and this was good. 

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I'm weird maybe but I like octopus, I think it tastes good and is a lot like sushi to me. I really like this entry!! I've always been fascinated by octopus and thought they were so smart and interesting. I wish I could have one as a pet to watch because they are always my fave animal at the aquariums.

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@Zariel I don't like it either lol 
 

@Kari it's actually hard to say because they have different types of intelligence. Dolphins are smart with social things, self-awareness, using tools, and even passing knowledge to younger generations and octopus are good with long and short term memories, problem solving and complex puzzles. Both are able equally smart.

@Animedragon yeah they are actually super smart even with using tools to open their food or solve problems.
 

Thanks all ~ glad you enjoyed reading 

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This was the best yet. They are really interesting to learn about and it's cool how smart they are. What kind of puzzles can they solve? 

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21 hours ago, Sakura said:

You can eat both lol

Which one taste better and where do you buy octopus at? I've never seen it. 

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8 hours ago, Sakura said:

Ty Pessikins<3
They can interact with Rubiks cubes, they can solve those L-shaped plastic puzzles though, they can open childproof locks/jars, navigate mazes, and escape locked aquariums pretty easily. There's a lot of videos on YT of them solving puzzles and stuff, it's pretty cool.

Probably goblin sharks tomorrow if I have time tomorrow, might be a Saturday project.

I've got to go check out some of those videos, I want to see the octopuses doing cool things lol 

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11 hours ago, Zariel said:

Idk where you are but we have fish markets here it's easy to find there, I see it a lot. If you have a place that sells seafood near you they probably sell it or you can order it online too. If you don't wanna cook it yourself, idk but probably a high end seafood restuarant carries or a Spanish restuarant because you can get grilled octopus there. When I had it, I had some kind of dried octopus snack in a bag. 

What blog are you doing next?

I had the grilled before which I didn't like. What do the dried snacks taste like?

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14 hours ago, Sakura said:

Ty Pessikins<3
They can interact with Rubiks cubes, they can solve those L-shaped plastic puzzles though, they can open childproof locks/jars, navigate mazes, and escape locked aquariums pretty easily. There's a lot of videos on YT of them solving puzzles and stuff, it's pretty cool.

Probably goblin sharks tomorrow if I have time tomorrow, might be a Saturday project.

Goblin sharks look so scary 

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1 hour ago, Sakura said:

They do look wild ngl lol I also want to do an anglerfish blog 

I want to know more about anglerfish lol.

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5 hours ago, Zeref said:

I want to know more about anglerfish lol.

Are those the ones with the lights?

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7 hours ago, Zeref said:

I want to know more about anglerfish lol.

I'll prolly write a blog for it tomorrow, I was gonna tonight but time has escaped me lol

2 hours ago, Zariel said:

Are those the ones with the lights?

Yup them is the guys

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