50 Amazing Facts About Octopuses You Probably Never Knew - Facts.net (2023)

50 Amazing Facts About Octopuses You Probably Never Knew - Facts.net (1)

Octopuses are sea creatures with round bodies, bulging eyes, and eight long arms. People call them "monsters of the deep" because most of them live in deep water. Do you want to know more about them? Look no further, here are some squid facts!

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  1. Octopodais the scientific name of the octopus.
  2. There are over 250 species of squid.
  3. You have three hearts.
  4. An octopus has 8 limbs.
  5. Like most living beings, they have two eyes.
  1. The squid is grouped in the class 'Cephalopoda' along with cuttlefish, nautilus and cuttlefish.
  2. They have a mouth beak in the middle of their eight limbs.
  3. The octopus lives in various locations in the ocean, such as pelagic waters, coral reefs, and the sea floor.
  4. Although many squid are known to live in the intertidal zone (area within the tidal range), some of them also live in the depths of the Abyss.
  5. Some species of squid can live at depths of over 10,000 feet.
  6. Expelling octopus ink is the best defense against predators to hide from their eyes.
  7. They are also fast swimmers, reaching speeds of 40 kilometers per hour.
  8. The term "octopus" comes from the Greek word "októpus" which means "three feet".
  9. In general, most species of squid grow quickly and mature quickly.
  10. Most squid have short lifespans, ranging from 1 to 5 years depending on the species.
  1. You can find a freshwater octopus in the riversNorth America.
  2. The freshwater octopus is 2 to 3 feet long.
  3. They are soft-bodied beings.
  4. Octopuses are also popular in mythology, as is the "kraken".
  5. Usually the male squid dies a few months after mating.

Table of contents

01Fact infographic about octopus

02Female octopuses die after their eggs hatch.

03Mating can last several hours.

(Video) Crazy True Octopus Facts About The Eight-Legged Sea Creature

04All octopuses have poison.

05The blue-ringed squid's venom is deadly.

06The size of the blue-ringed octopus is only five to eight inches.

07The bite of the blue-ringed octopus is painless.

08The giant Pacific octopus is the largest species of squid.

09The octopus has a decentralized brain.

10Deep sea octopuses cannot produce ink.

11Almost all squid are predators.

12The plural form of octopus is: octopus or octopuses.

13Vulgaris is the most common species of squid.

14Squid can regrow their arm if they lose one.

fifteenAn octopus can change color in an instant.

sixteenOctopuses change color through their muscles.

17Squid are intelligent creatures.

18The octopus breathes through its gills.

(Video) Octopus Facts for Kids

19The octopus' eyes are on the top of its head.

20Octopus is rich in the protein hemocyanin.

21Octopus blood is bluish.

22Octopus tentacles "survive" for an hour.

23The taste of squid is similar to squid or squid.

24Octopus has a slightly sweet taste.

25Live octopus is a delicacy in South Korea.

26Eating squid fans is not a good idea.

27It's not uncommon for customers to choke from eating live squid.

28You have many predators in the ocean.

29Octopuses are non-social creatures.

30They can build their own caves.

31They have better eyesight than humans.

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(Video) 27 Facts About Octopus (WEIRD) #octopus #factsaboutanimals #seacreatures

Fact infographic about octopus

50 Amazing Facts About Octopuses You Probably Never Knew - Facts.net (2)

Female octopuses die after their eggs hatch.

Besides the fact that the male octopus usually dies a few months after mating, the female octopus also dies shortly after mating.OwnerHatch. The incubation period for eggs is typically 2 to 10 months, depending on the species and water temperature. Meanwhile, the mother squid stops eating and just focuses on protecting her eggs from harm.

Mating can last several hours.

After mating, the male octopus inserts his hectocotyl into the female's mantle cavity and deposits spermatophores. The hectocotyl is the modified arm of the male octopus, which they use to transfer sperm to the female. Depending on the species, mating can last several hours.

However, due to the cannibalistic nature of the female octopus, there is a risk that the male octopus will be eaten during mating. To avoid this, they either mate remotely, or the male octopus rides on the female octopus' back, giving her time to escape if something goes wrong.

All octopuses have poison.

When an octopus catches its prey, it ruptures the shell and injects its poisonous saliva into the prey to paralyze or kill it. Although all octopuses have venom, not all are dangerous to humans. Only the blue-ringed octopus is deadly with just one bite.

The blue-ringed squid's venom is deadly.

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The blue-ringed octopus is the world's most venomous marine animal. This squid can paralyze and kill an adult human with a single bite. They are commonly found in coral reefs and tide pools in the Indian OceanPacific Oceans.

The size of the blue-ringed octopus is only five to eight inches.

The blue-ringed octopus has a lifespan of about two years and varies with age.nutrition, environment, temperature and light intensity in your area. They are also tiny compared to most squid species, only six to eight inches tall.

The bite of the blue-ringed octopus is painless.

A bite from a blue-ringed octopus is usually painless. Therefore, many blue-ringed octopus victims have suffered the effects and are being harmed without knowing it.

The giant Pacific octopus is the largest species of squid.

50 Amazing Facts About Octopuses You Probably Never Knew - Facts.net (4)

The giant Pacific octopus or "Enteroctopus dofleini" is the largest known species of squid. The adult giant Pacific octopus weighs about 33 pounds. Its arms reach up to 4.3 m or 14 feet. The giant Pacific octopus is also known as the giant North Pacific octopus.

The octopus has a decentralized brain.

The squid have decentralizedbrainsand most of your neurons live in your arms. These neurons help the arms touch, taste, and execute their own basic movements independently, giving the impression that the octopus has nine brains.

Deep sea octopuses cannot produce ink.

All squid can produce ink, with the exception of squid that live in the depths of the open ocean. The octopus's ink comes from ink sacs in its gills. They paint when they face danger and need to escape their predators. Its ink is accompanied in the production of slime.

Almost all squid are predators.

Bottom-dwelling octopuses primarily feed on polychaete worms, whelks, mussels and crustaceans. On the other hand, in the open sea, squid feed mainly on other cephalopods, shrimp, etcpez.

The plural form of octopus is: octopus or octopuses.

Although most people use the word octopuses as the plural form of octopus, according to the Merriam-Webster Dictionary, "octopuses" and "octopuses" are correct and the plural form of octopus.

Vulgaris is the most common species of squid.

50 Amazing Facts About Octopuses You Probably Never Knew - Facts.net (5)

Also known as the common octopus, this species of octopus belongs to the cephalopod class of mollusks. It has been widely studied among squid species. These squids live all over the world. They are most commonly found in Japanese waters, the Mediterranean Sea, and the eastern Atlantic.

Squid can regrow their arm if they lose one.

These soft-bodied octopuses are invertebrates, they have no bones. As such, its tentacles or "arms" are vulnerable to damage. The regeneration process begins as soon as they lose the tentacle or after it has been damaged.

An octopus can change color in an instant.

Octopuses can change their skin color in an instant.ojo! The 'chromatophores', special cells of the octopus, are the reason for its amazing transformation. These special cells under the skin come in thousands of colors.

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Octopuses change color through their muscles.

How did it happen? Each chromatophore cell has a flexible pigment-filled sac called the cytoelastic sac. As the muscles around the pouch contract, the pouches stretch, allowing more color to be seen in the octopus skin. This will give them a lighter color. Conversely, when the muscles relax, the sacs shrink back to their original size, making the pigment less visible.

Squid are intelligent creatures.

His ability to change color, use greater force compared to his body weight, and spray paint when threatened is a testament to his problem-solving skills. It is also part of developing your intelligence.

The octopus breathes through its gills.

Like fish, squid breathe by extracting water through their gills. When the octopus is out of the water, it cannot breathe because its gills are no longer floating. However, they can still survive for a short time.

The octopus' eyes are on the top of its head.

50 Amazing Facts About Octopuses You Probably Never Knew - Facts.net (6)

The octopus' eyes are large and located on top of the head. The octopus' eyes are comparable or similar in structure to most fish and are enclosed in a cartilaginous capsule that is combined with its skull.

Octopus is rich in the protein hemocyanin.

Hemocyanin, a copper-rich protein, helps transport itoxygenaround the body of the octopus. However, this protein makes blood very viscous, requiring considerable pressure to pump it around the body. Because of this, the squid's blood pressure can exceed 75 mmHg, or 10 kPa.

Octopus blood is bluish.

When the squid is in a cold, low-oxygen environment, hemocyanin carries oxygen more efficiently than hemoglobin, a metalloprotein in red blood cells that also carries oxygen. Hemocyanin is also dissolved in the plasma instead of being transported to the blood cells, making the squid blood appear bluish.

Octopus tentacles "survive" for an hour.

50 Amazing Facts About Octopuses You Probably Never Knew - Facts.net (7)

About an hour after the octopus has died, the octopus' tentacles can still move and react. The tentacles can still grab and mouth food.

The taste of squid is similar to squid or squid.

Octopus can be served raw or cooked. Cooked octopus has a unique smell and texture. The taste is like squidlula, while its texture resembles a chewy slice of pork. However, its taste varies mainly depending on the ingredients that are served with it.

Octopus has a slightly sweet taste.

Raw octopus has a slightly sweet taste. Raw octopus delicacies such as octopus sushi orso soonThey are popular in sushi restaurants. They have a chewy texture that makes them a perfect addition to salads.

Live octopus is a delicacy in South Korea.

50 Amazing Facts About Octopuses You Probably Never Knew - Facts.net (8)

live octopus, orsan-nak-ji, is a delicacy inSouth Korea. It is believed to be an "stamina booster" especially in summer. For some, eating live squid is good for blood sugar levels.

Eating squid fans is not a good idea.

71-year-old man dies of asphyxiation in South Koreaafter eating a chopped but moving squid tentacle. According to the information, the elderly man asked for help because of breathing problems. Although the restaurant worker called an ambulance for proper treatment at a hospital, it was too late. Police reports revealed that the squid blocked the old man's airway, causing him to lose oxygen.

It's not uncommon for customers to choke from eating live squid.

More than five people die every year just from eating live octopus. It is due to the octopus' tentacles sucking down the victim's throat, resulting in accidental choking. This problem is so widespread that restaurants and bars that serve live squid have had to put up signs telling customers to "chew well before swallowing."

You have many predators in the ocean.

The octopus is not only a tasty food for humans, but also for their marine predators such as sharks,dolphins,Only,seals and other large fish species.

Octopuses are non-social creatures.

50 Amazing Facts About Octopuses You Probably Never Knew - Facts.net (9)

Although there is an ongoing study of some species showing social skills, squid are not social creatures and prefer to live alone in rock burrows.

They can build their own caves.

An octopus can build its own shelter or burrow using shells or moving rocks held in place by its powerful tentacles.

(Video) The Insane Biology of: The Octopus

They have better eyesight than humans.

In addition to having a good sense of touch, octopuses also have very strong eyesight. They have a clear view of their surroundings. This gives them a slight advantage when escaping predators and capturing prey. An octopus also has many more photoreceptors, a sensory cell that responds to light, than vertebrates.


What is the weirdest octopus facts? ›

Octopuses also have three hearts: two just to pump blood through the gills and one more to circulate it to the organs. The circulating heart stops beating while an octopus swims, which explains why these cephalopods prefer crawling: Swimming exhausts them.

Does octopus have 32 hearts? ›

Octopuses have three hearts: one pumps blood around the body; the other two pump blood to the gills.

What's a cool random fact? ›

The human heart creates enough pressure to squirt blood 30 feet (9 m). Diet Coke was only invented in 1982. There are more than 1,700 references to gems and precious stones in the King James translation of the Bible. When snakes are born with two heads, they fight each other for food.

What color is octopus blood? ›

Are you still wondering why octopus blood is blue and what the three hearts do? Well, the blue blood is because the protein, haemocyanin, which carries oxygen around the octopus's body, contains copper rather than iron like we have in our own haemoglobin.

Does an octopus have 1 brain? ›

The giant Pacific octopus has three hearts, nine brains and blue blood, making reality stranger than fiction. A central brain controls the nervous system. In addition, there is a small brain in each of their eight arms — a cluster of nerve cells that biologists say controls movement.

Why are octopus so unique? ›

Octopuses show lots of interesting features: they have a funnel for jet propulsion, adaptive skin for camouflage, an ink sack to fend off predators, three hearts and pulsating veins, big eyes, that are very similar to our human eyes, an elaborate brain, and prehensile arms with some mind of their own.

What amazing things can octopus do? ›

The octopus's arms are lined with hundreds of suckers, each of which can be moved independently thanks to a complex bundle of neurons that acts as a brain, letting the animal touch, smell, and manipulate objects. Octopuses can open clamshells, maneuver rocks—even dismantle the filtration systems of an aquarium tank.

How does an octopus use 9 brains? ›

According to the Biogeo Planet, the octopus is considered the most intelligent creature because it has 9 brains. But how does an octopus utilises 9 brains? Actually, each of its eight brains helps in controlling the arm movements.

Do octopus have 2 hearts? ›

Octopuses have three hearts, which is partly a consequence of having blue blood. Their two peripheral hearts pump blood through the gills, where it picks up oxygen. A central heart then circulates the oxygenated blood to the rest of the body to provide energy for organs and muscles.

What are some fun facts for kids about octopus? ›

Octopuses are solitary creatures that live alone in dens built from rocks, which the octopus moves into place using its powerful arms. Octopuses sometimes even fashion a rock “door” for their den that pulls closed when the octopus is safely inside. Giant Pacific octopuses can change color to blend in wherever they go!

Which animal has 25,000 teeth? ›

Snails have more teeth than any animal.

A snail's mouth is no larger than the head of a pin, but can have over 25,000 teeth (but these aren't like regular teeth, they are on its tongue).

Can an octopus live without 1 heart? ›

The octopus would not be able to survive because that is the heart that provides the whole body with blood, which also helps deliver important oxygen around the body.

What does an octopus have 7 of? ›

The seven-arm octopus is so named because in males, the hectocotylus (a specially modified arm used in egg fertilization) is coiled in a sac beneath the right eye. Due to this species' thick, gelatinous tissue, the arm is easily overlooked, giving the appearance of just seven arms.

What are 10 weird facts? ›

49 Weird & Wonderful Facts Too Odd To Be True!
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What are 3 unusual facts? ›

Fun Facts and Trivia
  • It is impossible for most people to lick their own elbow. ...
  • A crocodile cannot stick its tongue out.
  • A shrimp's heart is in its head.
  • It is physically impossible for pigs to look up into the sky.

What are 50 fun facts? ›

50 Absurd Facts That Will Make You Question Everything
  • You typically only breathe out of one nostril at a time. ...
  • "Vegetables" don't really exist. ...
  • More people drown in fresh water than in salt water. ...
  • Your brain uses up around 20 percent of your body's blood and oxygen. ...
  • Ravens' moods are affected by others.

Can an octopus bleed? ›

Octopuses bleed blue, not red like humans. Their blood has a blue hue because the protein, hemocyanin, which carries oxygen in their bodies has copper rather than iron, which our (humans) hemoglobin possesses.

Which animal has pink blood? ›

One group of segmented marine worms has pink blood. This is because the molecule that carries the oxygen is a type of blood pigment, known as hemerythrin, which is described as pink or purple.

What animal has purple blood? ›

What animal has purple blood? Peanut worms, which are a kind of marine worm, have purple blood. This is due to the presence of hemerythrin, an oxygen-binding protein.

Do octopuses feel pain? ›

There is a consensus in the field of animal sentience that octopuses are conscious beings — that they can feel pain and actively try to avoid it. Kristin Andrews and Frans de Waal posit in a new report published in the journal Science that many animals, including cephalopods such as octopuses, feel pain .

How smart is a octopus? ›

Yet octopuses are extremely intelligent, with a larger brain for their body size than all animals except birds and mammals. They are capable of high-order cognitive behaviors, including tool use and problem-solving, even figuring out how to unscrew jar lids to access food.

Do octopus need all 3 hearts to survive? ›

The third, or systemic heart, pumps the oxygenated blood around the body, fueling up the eight tentacles for whatever they and their suckers plan to do. Octopuses are quite active as cephalopods, and it's thought that the three hearts are necessary to maintain their power.

Do octopuses feel sad? ›

Using detailed measurements of spontaneous pain-associated behaviors and neural activity, Crook has identified three lines of evidence that all indicate octopuses are capable of feeling negative emotional states when confronted with pain.

What is the weirdest octopus? ›

The greater argonaut, Argonauta argo, has a reputation for being the world's weirdest octopus and indeed may be one of the most unusual and mysterious creatures to roam the ocean. Unlike its relatives that live on the seafloor, this octopus has a pelagic lifestyle, meaning that it lives in the open ocean.

Why octopus is genius? ›

Scientists who study them have shown, by testing them with mazes and problem solving experiments, that octopuses have both short-term and long-term memory. They have been trained to recognize different shapes and patterns and to open jars and boxes using tools. They can also mimic behaviors of other sea creatures.

What are scary facts about octopuses? ›

They'll kill you dead. Blue-ringed octopuses deliver painless bites of paralyzing, deadly venom. Even humans aren't safe. The striking creatures are so good at what they do they're counted among the deadliest animals in the sea.

What can octopuses teach us? ›

The most obvious thing octopuses can teach us relates to the evolution of their nervous system and problem solving skills. Octopuses are seemingly one of the most intelligent animals on our planet that are not mammals, and our closest ancestor is twice as ancient as the first dinosaurs.

What emotions do octopus feel? ›

Researchers from York University argue that octopuses, crabs, lobsters, crayfish, and other invertebrates are indeed sentient and can feel pain, anger, fear, and happiness.

What is the octopus blood? ›

Snails, spiders and octopi have something in common- they all have blue blood! We're not talking in the sense of royalty, these creatures literally have blue blood. So why is their blood blue and ours red? One of the purposes of blood is to carry oxygen around the body.

Do octopuses have memory? ›

Intelligence. The octopus has a complex nervous system and is capable of learning and demonstrating memory.

Which animal has blue blood? ›

Can you guess what animals might have blue blood? Lobsters, crabs, pillbugs, shrimp, octopus, crayfish, scallops, barnacles, snails, small worms (except earthworms), clams, squid, slugs, mussels, horseshoe crabs, most spiders. None of these animals have backbones. Some of these animals are Mollusks, like the snails.

Which animal has 32 hearts? ›

Which animal does have 32 hearts? To many, leeches are horrifying creatures. To a few, they're impressive and miraculous. They have 32 brains, 2 hearts, 300 teeth grouped in 3 jaws, five pairs of eyes...

What is a half human half octopus called? ›

Cecaelia – Half-human, half-octopus. The term was coined by fans in the late 2000s to describe characters such as Ursula from The Little Mermaid.

What happens if one heart of an octopus dies? ›

But if the octopus's systemic heart failed, it would be bad news. The octopus would not be able to survive because that is the heart that provides the whole body with blood, which also helps deliver important oxygen around the body.

Are octopus smarter than 6 year olds? ›

It is hard to compare an octopus's intelligence directly with a 5th grader's; however, through an octopus's complex nervous system, ability to survive on their own and capability of creativity, they are proven to be smarter than a 5th grader.

What do octopus do when bored? ›

They eat their arms when bored

Some even turn to a disturbing behavior known as autophagy, or eating their own appendages, in such non-stimulating environments.

Do octopuses have sexes? ›

Reproduction. Octopus vulgaris has individuals of both sexes. During mating, the male approaches the female, who fends him off for a while, but then accepts him. He sits next to her or mounts her, inserting the hectocotylus in her mantle cavity to pass the spermatophores.

What animal has 3000 teeth? ›

5 – Great White Sharks

The Great White Shark is the largest predatory fish on earth, and it wields a lot of impressive teeth. Great White Sharks have around 3,000 teeth in their mouth at one time in multiple rows on their jaws.

What animal has 10,000 teeth? ›

But over the course of their lifetime, "estimates suggest some species of requiem sharks may grow and shed 30,000 teeth," Naylor told Live Science. That's threefold more than the great white (Carcharodon carcharias), which goes through about 10,000 during its lifetime.

Which animal has 14000 teeth? ›

Snails have more teeth than any other animal! Unlike other animals, snails' teeth are on their tongue! Different kinds of snails have different amounts of teeth but the garden snail has about 14,000 teeth!

Do all octopus have 9 brains? ›

Octopuses have 9 'brains'. One central brain is used for overall control. At the base of each arm is a group of nerve cells which can control each arm independently, acting as smaller brains. Why is octopus blood blue?

Do all octopus have 8 brains? ›

Each of the octopus's arms has a small cluster of nerve cells that controls movement, so the creature technically has eight independent mini-brains along with a larger central brain. Researchers have known about the octopus's unique biology for some time now.

What is the rarest octopus ever? ›

Only a handful of people have spotted the dazzling blanket octopus in the wild, making it one of the rarest sights in the marine world. The technicolour marine mollusc was spotted last week by reef guide and marine biologist Jacinta Shackleton, off the coast of Lady Elliot Island in the Great Barrier Reef .


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