Giant octopus and squid, are they the same ancestor?

First of all, I think they are the same ancestor, but they have evolved into different varieties over time. Just like birds nowadays, there are birds, chickens, geese, and ducks, and their ancestors must have been the same creature, but because of the different evolution and the environment they encountered, they evolved into different species. <>

I think that the ancestors of Zhang Yu and the squid should have lived in the deepest part of the seabed at the beginning, and they were very large. Later they produced a lot of offspring, but it was the Jurassic period, and the earth's crust was constantly changing, and when the crust sank, the sea would flow lower; When the earth's crust is upward, many mountains emerge from the bottom of the sea. So during this evolutionary period, their offspring migrated to various places with the movement of the earth's crust.

Some of them may live in shallow seas and some in deep seas. <>

And they will give up their old eating habits in order to survive, for example, they used to prey on large creatures, but now because there are no creatures in the shallow sea, they can only eat some seagrass and other food. So this has also led to a big change in their body size. But in the end, they are all a kind of ancestral change.

Now as far as I know, there are octopus, squid, octopus, squid. In fact, the octopus is very similar to the octopus, except that the octopus is smaller and the octopus is larger. They all have 8 claws on their bodies, and they have a lot of suction cups on them.

Squid, on the other hand, look similar to squid, they have long strips of body and antennae on them, and the squid is much larger than squid. <>

But both species of fish, the octopus and the squid, have ink on them, but the octopus has more ink because it has an ink sac under its head. Squid and octopus are supposed to live in the deep sea, and squid and octopus are farmed in captivity. It is said that the giant octopus in the deep sea is as tall as a five-story building, and its claws are tens of meters long, so it has a very strong ability to compensate.

The giant octopus and the squid are close relatives of different species, and their ancestors are certainly not the same, according to Darwinian evolution, objects of different species cannot evolve into the same species.

Yes, squid, giant octopus all have a common ancestor - the vampire squid.

Giant octopuses and squid are not an ancestor. Because the octopus is the suborder of the eight-wristed order, all squid are the eye-opening suborder of the order Lanceformes, the most intuitive, the squid has eight short wrists, two long wrists for a total of ten wrists, and the octopus only has eight wrists.

They are supposed to be the same ancestor, and although the giant octopus and the squid belong to two different creatures, some genes are very similar.

There are many beautiful and wonderful animals in this world, so let's get to know them a little bit in this show

Squid is not an octopus.

The cuttlefish, whose real name is the squid, is also known as the flower branch, cuttlefish or cuttlefish, and is an animal of the order Cephalopoda Squid of the mollusk phylum. When a squid encounters a strong enemy, it will use inkjet as a method of escape and wait for an opportunity to leave, so it has names such as squid and cuttlefish. There are small sacs of pigment in it, which change color and size with changes in mood.

Squid will leap out of the sea and have an amazing ability to fly through the air. Like squid and octopus, they are marine mollusks, and none of the three are fishes. Octopuses are temperate mollusks that live underwater and can adapt to water temperatures that cannot fall below 7 degrees Celsius.

It can feed on large animal plankton and grow, and is widely distributed in tropical and temperate seas of the world's oceans.

Squid features

Squid, also known as cuttlefish, cuttlefish, squid marine cephalopod mollusc, and octopus and spear squid are closely related. The modern squid appeared 21 million years ago in the Miocene, and its ancestors were arrowstones, characterized by a calcareous inner shell. The body of the squid can be divided into three parts: head, feet and trunk, the trunk is equivalent to the visceral mass, and the outer body is covered with a muscular mantle with a calcareous inner shell.

The anterior end of the cephalic body is spherical, and its apex is the mouth, surrounded by oral membranes, and there are 5 pairs of wrists on the periphery. There are a pair of well-developed eyes on both sides of the head, and the structure is complex. The wrist and tentacle are the predation and combat of the squid**, not only the weak life will die under the squid's wrist, even the behemoth whale in the sea is difficult to deal with when it encounters a large squid with a body length of more than ten meters.

The above content reference: Encyclopedia - Squid.

Many people can't tell the difference between octopus squid, but they are used to thinking that they are the same kind of fish. So, is an octopus a squid? What is the difference between an octopus and a squid?

Is an octopus a squid Octopus and octopus belong to one type of fish, and squid and cuttlefish belong to one type of fish.

They are organisms of the same class.

The squid is fundamentally different from the octopus, and the shape is not the same as the defeat. But it's easy for everyone to mix these two together. Because it's similar in so many ways, like attack, it's all inkjet, so a lot of people get it wrong.

Difference Between Octopus and SquidThe nature of the subjects is different

Octopus: molluscs phylum Cephalopod Octopods.

Squid: mollusc phylum Cephalopod Squid.

Attack Method: (Similar).

Octopus: The octopus has 8 brachiopods with many suckers on the brachiopods; Sometimes black ink is squirted to help escape.

Squid: When encountering a strong enemy, the squid will use "inkjet" as a method of escape and wait for the opportunity to leave. But squid horn morning suckers.

Brachiopod Differences:

Octopus: 8 Squid: 10

The difference in IQ:

Octopus: Quite well-developed brain that can distinguish itself in the mirror.

Squid: The brain is not perfect, and it relies on its senses to deal with things.

The difference between the body:

Octopus: Octopuses do not have the gray matter hard shell of squid, so they do not have a fixed shape on their bodies, so they are easy to distinguish.

Squid: The body resembles a rubber bag, the squid has a boat-shaped calcareous hard sheath, and the internal organs are encased in the bag.

Nutritional value of octopus 1. Octopus is rich in protein, minerals and other nutrients.

2. Octopus is rich in taurine, and the taurine content in octopus is much higher than that of ordinary meat.

3. Octopus is rich in protein, fat, carbohydrates, calcium, phosphorus, iron, zinc, selenium, vitamin E, vitamin B, vitamin C and other nutrients.

4. Octopus is a high-protein and low-fat food, every 100 grams of octopus contains up to 19g of protein, which is not inferior to ordinary beef, pork and fish, and is 6 times the protein content of milk, and contains all the essential amino acids of the human body, which is a real high-quality protein.

5. The fat content of octopus is very low, only grams of fat per 100 grams, and the fat of lean pork of the same weight also has grams, and the grass carp, which is also an aquatic product, also has a gram of fat content per 100 grams of fish. Therefore, if we want to consume protein without excessive fat intake, octopus is a good choice.

6. Each 100 grams of octopus contains 473 kilojoules of energy, vitamin mg, vitamin mg, niacin mg, vitamin E content mg, calcium 38 mg, phosphorus 203 mg, potassium 312 mg, sodium mg, magnesium 31 mg, iron mg, zinc mg, selenium mg, copper mg, manganese mg.

It's not the same. The main differences are different subject classifications, different morphological characteristics, and different living habits, as follows:

1. The classification of subjects is different.

1. Octopus. Octopus, also known as octopus, belongs to the phylum molluscs, cephalopods, octopus order, octopus family, octopus genus, and true clamour species.

2. Squid. The squid's real name is blackfish, also known as flower branches, cuttlefish or cuttlefish. It belongs to the phylum molluscs, cephalopods, squid, squid, squid.

Second, the morphological characteristics are different.

1. Octopus. The body is generally very small, and the eight tentacles are thin and long, so it is also called "octopus". Its nervous system is the most complex and advanced of invertebrates, including the central nervous system and peripheral nerves, and the auditory, olfactory and visual nerves are divided into cranial ganglia. The most developed of its sensory organs is the eye, which is not only large, but also swollen and motionless.

The structure of the eye is complex, with a cornea in front and a sclera around it, as well as a well-developed lens comparable to that of vertebrates. In addition, there is a dimple in the back of the eye**, which is used for the sense of smell.

2. Squid. The feet of the squid are born on the top of the head, so they are also called cephalopods. Eight of the 10 feet on the top of the head are short, with dense suckers on the inside called the wrists, and two longer, free-moving feet that retract into the two sacs, called tentacles, and only the front end has suction cups on the inside side.

The trunk is pouch-shaped, dorsoventrally slightly flattened, and the head is posterior. The outer part is covered by a very muscular mantle, and the inner part is the visceral mass. The torso has fins on both sides, the fins are separated at the end of the torso, and the fins play a balancing role in swimming.

3. Different living habits.

1. Octopus. Octopuses like to burrow into the empty shells of animals to live. Whenever it finds an oyster, it waits patiently, and the moment the oyster opens, the octopus quickly throws a stone into it, so that the two scallops of the oyster cannot be closed, and then the octopus eats the oyster's flesh.

Octopuses have very special reproductive characteristics, and they only have one chance to reproduce once in their lifetime. Octopuses belong to the mollusk family, and after mating and spawning, both male and female octopuses lose their appetite and die after about a week.

Octopuses have a strong ability to regenerate. Whenever the octopus encounters an enemy, sometimes its tentacles are firmly grasped by the opponent, and then it will automatically throw away its tentacles, take a step back by itself, and let the wriggling of the broken tentacles confuse the enemy, and take the opportunity to slip away.

2. Squid. Squid like to live in the deep waters of the open sea. In the warm spring season every year, the spawning is carried out in the shallow inner bay, and the eggs are laid in April and June, and the eggs are adhered to seaweed and other objects, and the larvae that hatch in the year begin to swim back to the south for wintering in late September. It can prey on crustaceans, molluscs and other small animals during migration.

Squid mainly eat crustaceans, small fish, or other mollusks. The ink in the squid's body is usually stored in the ink sac in the stomach, and when it encounters an enemy attack, they will spew a stream of ink from the ink sac, staining the surrounding sea water black, and then take the opportunity to escape.

Cuttlefish is squid.

Squid and octopus, animals of the same class (cephalopod), are similar, and are said to have a common ancestor. But the body size is different, the octopus is shorter and rounder. The number of feet varies, with octopuses also called "octopus" and squid 10.

Squid and octopus are two different creatures! They all have 8 tentacles.

Chubby is a squid! It's the octopus that's skinny!

It's not the same. If you want to do the same, just call one.

The octopus (Baxun empty sedan acre is a generation fish) has eight legs, and the squid has () one leg.

Strip. Strip. (correct answer) bar.

Octopuses and squid are two different species biologically. The octopus is a marine creature that belongs to the mollusks; Squid is a marine creature that belongs to the crustacean family. There is no direct biological relationship between these two organisms, they are just species that live in the same environment and live together.

There are 8 tentacles for octopuses, 10 for squid and squid tentacles, but squid does not spray ink.

No. Octopus belongs to the mollusk phylum Cephalopod Octopod, with 8 brachiopods, commonly known as octopus, with suction cups, inkjet, the body is not too big, but the tentacles are very long, and the large octopus weighs half a catty with its tentacles alone. Some octopuses have fairly well-developed brains that can distinguish themselves from themselves in a mirror.

In terms of firing method, octopus balls are a well-known delicacy of the public, and the price in the Shanghai market is 10-30 yuan.

Squid belongs to the order Cephalopoda Squid of the Phylum Mollusc, whose real name is Coptera, has a sucker cup, can spray ink, and is commonly known as Patting Nian cuttlefish or cuttlefish. The squid has a thick calcareous inner shell with 8 short wrists and 2 long tentacles for a total of 10 wrists for catching and eating, and can be retracted into two sacs. There are suction cups on the tips of the wrists and tentacles.

Squid Shanghainese eat more, generally used for roasting, braised braised squid, the Shanghai market price of yuan catty.

No. All belong to mollusks, to distinguish, a little knowledge is difficult, if you are interested, you can see the publication of "Zoology" Higher Education Press.

The cuttlefish, whose real name is the squid, is also known as the flower branch, cuttlefish or cuttlefish, and is an animal of the order Cephalopoda Squid of the mollusk phylum. Cephalopod molluscs of the order Squid, closely related to octopus and spear squid. It is characterized by a thick calcareous inner shell.

Octopus: The octopus is also known as the octopus.

Also belonging to marine mollusks, the body of a typical octopus is sac-shaped; The division between the head and the body is not obvious, and there are large compound eyes and 8 retractable wrists. Each wrist has two rows of fleshy suction cups that can hold other objects strongly. The base of the wrist is connected to a webbed tissue called the skirt, in which there is a mouth in the heart.

The mouth has a pair of sharp horns.

Squid: Squids are mollusks that live in the ocean. Taxonomically, squid is an animal belonging to the phylum Mollusca-Cephalopod-Dipgill Subclass-Decabrachida.

Squid has two gills in its body as a respiratory organ; The body is divided into a head, a very short neck, and a torso. The sides of the head have a pair of well-developed eyes and brachiopods around the mouth.