Cephalopods

Yes, squids are carnivorous. They primarily feed on smaller fish, crustaceans, and other squid. They use their tentacles to catch and immobilize their prey before consuming them.

Squids, octopuses, cuttlefish, argonauts and nautiluses are all types of the biggest invertebrates, the cephalopods. These creatures are shaped like cylinders. Their mouths, at the bottom end, have jaws that are shaped like beaks and are very sharp. Around the mouth are flexible muscular tentacles. Cephalopods have well-developed eyes. Scientifically speaking, the official classification for a cephalopod is Nautilida, Decapoda, Vampyromorpha or Octopoda, in the class of Cephalopoda of the phylum Mollusca.

Yes, octopuses have relatively large eyes compared to their body size. Their eyes are essential for their hunting and survival in the ocean, providing excellent vision and the ability to detect even subtle movements in the water.

Octopi are generally not disturbed by dim light, but they can be sensitive to bright light which might cause them to seek shelter or change color to blend in with their surroundings. In their natural habitat, they are usually more active during the night or in low-light conditions.

Cephalopoda

Cephalopods, such as octopuses and squids, have a closed circulatory system. This system consists of a heart that pumps blood through a series of vessels for efficient distribution of oxygen and nutrients to tissues and organs.

Cephalopods use chromatophores for camouflage to blend into their environment, communicate with other cephalopods through color changes, and express emotions such as fear or aggression. Additionally, chromatophores help with thermoregulation by adjusting the amount of pigment to absorb or reflect light.

Theoretically yes, though maybe not from birth. Octopi possess cells known as chromatophores, which allow the octopus to change color and blend in with its environment to hide from predators. There are thousands upon thousands of color combinations available to octopi, so I imagine they can turn purple. However, I'm not quite sure if an octopus can be purple from birth. Answered by a 7th Grader.

No. Octopi and cuttlefish are related, but they are not the same. Both belong to a class of marine invertebrates cephalopods, which also includes squid. One key difference is that squid and cuttlefish each have eight arms plus two tentacles while an octopus simply has eight arms.

A cuttlefish is not a fish at all but a marine invertebrate. Cuttlefish are molluscs in the class cephalopoda along with octopi and squid. Molluscs also include bivalves (clams, oysters and mussels) and gastropods (snails and slugs).

Cephalopods such as octopuses, squid, and cuttlefish do not have shells. They have evolved with a reduced internal or external shell, or in some cases, no shell at all. This allows for greater agility and flexibility in movement.

Cephalopods are widely regarded as the most intelligent of the invertebrates, and have well developed senses and large brains (larger than those of gastropods). The nervous system of cephalopods is the most complex of the invertebrates and cephalopods is the most complex of the invertebrates and their brain-to-body-mass ratio falls between that of warm- and cold-blooded vertebrates.The brain is protected in a cartilaginous cranium. The giant nerve fibers of the cephalopod mantle have been widely used as experimental material in neurophysiology for many years; their large diameter (due to lack of myelination) makes them relatively easy to study. Cephalopods are social creatures; when isolated from their own kind, they will take to shoaling with fish. Some cephalopods are able to fly through air for distances up to 50 m. While the organisms are not particularly aerodynamic, they achieve these rather impressive ranges by use of jet-propulsion; water continues to be expelled from the funnel while the organism is in flight.

Squids can get fungal infections, commonly from waterborne pathogens. These infections can affect their skin, gills, or internal organs and may impact their health and behavior. Treatment typically involves antifungal medication or changes in their aquatic environment to minimize fungal growth.

Nautiluses are carnivorous and primarily feed on small fish, shrimp, crabs, and other small marine animals. They use their tentacles to capture and bring food to their mouth, where they have a strong beak-like structure to break down their prey.

Yes. We know it takes about 15 years for a female nautilus to reach maturity, and she then lays no more than 15 eggs. We also know that every known nautilus population is composed of about 70% males, and that the populations exist in low numbers on Indo-Pacific habitats. Since I began my first field work on living Nautilus in 1975, at least one population - in the Tanon Straits of the Philippines - has crashed from overfishing.

Peter Ward

A nautilus sleeps by anchoring itself to the ocean floor using its tentacles or shell. It typically looks for a secure spot in the reef or sandy bottom to rest during the night or when feeling threatened.

The Nautilus was a fictional submarine created by Jules Verne in his novel "20,000 Leagues Under the Sea." There is no evidence that a real submarine named Nautilus, with the capabilities described in the book, ever existed.

Cuttlefish can be found in temperate and tropical waters around the world, typically in shallow coastal reefs and sandy areas. They are frequently found in the Mediterranean Sea, the Indo-Pacific region, and off the coast of Australia. Cuttlefish are well-adapted to a variety of marine habitats and are known for their impressive camouflage abilities.

It uses its 8 tentacles and thrashes them to propel through the water, like if you swam moving your arms to the sides

Nope, because coelenterate animals are stinging-celled animals and animals with tentacles and hollow body. Squid is not a stinging-celled animal, even if they have tentacles and hollow body. Squid is an example of a MOLLUSK, which are soft-bodied animals.

---Co0leTs24

Squid (of any size) have beaks, which they use to bite off their food, which they then swallow.

First the octupus catches its prey till it has full control over it. Secondly it bites it with its beak. The beak then makes its prey fall in a doze or sleep. Then since its prey does not try to escape the octopus eats it.

No, octopuses are typically more active during the night, which makes them nocturnal. They have night-time hunting behaviors and prefer to hide during the day.

No, squids are not decomposers. They are predators that typically feed on other marine animals like fish and crustaceans. Decomposers are organisms that break down dead organic matter, such as bacteria and fungi.

they are carnivores they eat Shrimp, small fish and crustaceans