Do Octopus Have Teeth? 7+ Amazing Facts

Unlike humans octopuses do not have proper teeth, instead, they have strong, parrot-like beaks made of chitin. As octopuses are invertebrates, they do not have bones but they are denticles. They have a radula which is a rough, muscular tongue covered in a tiny structure.

the radula acts like a drill to bore into the shredded food and shells. Despite having no bony teeth like humans, they do not hesitate to bite hard food materials. The beaks are sharp and venomous and help in crushing the food for easy digestion.

It is a fact that their beaks are venomous but are not dangerous to humans however, it is good practice to be careful.

I think you got this. But that’s not enough about octopus teeth. Stay with me, here I have written a full article based on factual information.

Let’s jump into it.

Octopus Teeth Explained

The simple answer is no, octopus do not have teeth as they are invertebrates. Octopus teeth-like organs are called beaks that resemble parrot beaks but are stronger and sharper.

Beaks are made of chitin. Chitin is a substance that makes the exoskeleton of the arthropods and cell walls of fungi and gives strength to the material.

Beaks is composed of many tiny and hard structures called denticles. Denticles are also made of a hard material called dentin which is even stronger than bone. Octopuses use their beaks to crush hard food materials and tear the flesh into pieces.

The beak of the octopus is not alone enough to completely process the food. Inside the beak, there is a tongue-like structure called a radula covered by hundreds of tiny denticles. It is made of dentin which is harder than bone. Radula helps octopus to break the food into smaller pieces which is made easy for digestion.

First beaks of the octopus crush and rip the food out and then transfer it to radula. Radula grinds the food and makes it easy for digestion. Octopuses also use radula to bore holes in prey like crabs and shellfish. Both parts beak and radula are very obvious for octopus food processing.

Are Octopuses Venomous or Deadly?

octopus teeth on suction cup

Not at all, despite being venomous, octopuses are not deadly. There are some species like blue-ringed octopuses are considered to be more pious as they have strong venom.

There are about 300 species of octopus and about four of the blue-ringed are known to be dangerous for humans. And that is because they release a highly lethal poison composed of tetrodotoxin and dopamine.

This became harder for humans to treat such type of neurotoxin as it is considered 1200 times more lethal than cyanide.

How to get rid of an octopus’s attack

Avoid Its Arm

If you are swimming and you want to avoid the octopus attack, you have to avoid its arms because their tentacles are the only organs they use to prey for their living. An octopus has a suction cup-like structure through which they attach to the prey and release poison.

Avoid Redula

The radula of the octopus is used as a drill to bore into the shellfish or other prey. And it is very harmful to humans as they can also get hurt. so try to be away from these parts of the octopus.


How many teeth do octopus have?

The octopus has eight muscular appendages, each of which has eight separate suckers. Surprisingly, these suckers have a wonderful adhesive power; they can stick to objects with a force greater than thirty times that of the octopus. This shows the extraordinary suction force that octopuses have.

What do you call the beak of the octopus?

Unlike human bony jaws, the beak of the octopus is called rostrum. Which is further compose of two parts.

Upper mandible: this is the top (dorsal) part of the rostrum.

Lower mandible: this is the lower (ventral) part of the rostrum and fits inside the upper mandible.

Is the octopus beak a bone?

No, the beak of the octopus is made of denticles. The denticles provide strength and support to the jaws and muscles of the octopus. Cephalopods are invertebrates, they don’t have bones.

How do octopuses breath?

Unlike humans, octopuses can extract oxygen from water through their gills utilization. Here is how it works.

Water Intake: The internal organs of the octopus are enclosed in a muscular sac known as the mantle cavity. The mantle aperture is a muscle opening that allows water to enter this chamber.

Gas Exchange: Two gills filter the water inside the mantle chamber. These gills include thin, large-surface-area filaments that efficiently diffuse oxygen into the octopus’s blood. The remaining waste like carbon dioxide diffuses into the water and out of the blood simultaneously.

Water Expulsion: Following the gas exchange, the siphon, a second muscular aperture, allows deoxygenated water to leave the mantle cavity. By actively releasing water, this siphon also helps with the jets’ motion, enabling the octopus to move fast.

Final words:

So far we know that octopuses don’t have teeth instead they have beaks which are made of chitin. Chitin is a fibrous substance that is present in the exoskeleton of arthropods and the cell wall of fungi.

And octopus can be dangerous for humans as some of their species have poison 1200 more venomous than cyanide.

I hope now you know a little bit of information about octopus teeth. If you have any questions, you can ask me in the comment section.

Do sharks eat Bones…

Are There Sharks With Down Syndrome

Shark Eating JellyFish

Leave a Comment