Squid

A:

Squid usually have two tentacles and eight arms that are also called legs. A giant squid's tentacles can be up to 10 meters long and the arms up to 3 meters long. The smallest squid is only 2.5 centimeters in length total.

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  • What are the key similarities and differences between a squid and an octopus?

    Q: What are the key similarities and differences between a squid and an octopus?

    A: Squids and octopuses are both head-footed cephalopods, but their behavior, habitat and physical characteristics are different. Both are blue-blooded aquatic animals, as their blood contains copper and has oxygen-carrying molecules, and they both move by jet propulsion and live in salty waters in temperate zones. They both squirt ink, but it's different colors. Squids produce blue-black ink while octopuses squirt black ink.
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  • Is a squid a baby octopus?

    Q: Is a squid a baby octopus?

    A: The squid and the octopus are different animals, although they both belong to the molluscan class Cephalopoda and, as such, are related. One major difference between the squid and the octopus is the number of arms. Squid have 10 arms compared to the eight of the octopus.
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  • How do squid breathe?

    Q: How do squid breathe?

    A: Squid breathe by drawing water through their siphons into their mantles, the large muscular coverings over their bodies, where it passes over their two sets of gill filaments, absorbing oxygen and releasing carbon dioxide via diffusion. The blood that absorbs the oxygen uses a copper compound, haemocyanin, rather than the iron-containing hemoglobin of mammals. The blood is pumped to the gills from two branchial hearts and elsewhere by a third.
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  • Is a squid a fish?

    Q: Is a squid a fish?

    A: Scientifically speaking, a squid is not a fish, but a mollusk. Mollusks are soft-bodied creatures that have gills in order to breath through.
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  • What is a devil squid?

    Q: What is a devil squid?

    A: The term "devil squid" is usually used in reference to the Humboldt squid, which has a reputation of being highly aggressive. They have attacked divers and been observed engaging in cannibalism.
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  • What do small squid eat?

    Q: What do small squid eat?

    A: Very small squid eat plankton. As they grow larger, they hunt and eat other marine creatures. Common food sources for small squid include small fish, crabs and shrimp.
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  • What is a group of squid called?

    Q: What is a group of squid called?

    A: A group of squid is called a shoal or squad; a group of giant squid is a school. Groups of squid are more easily viewed at sunrise and during twilight, according to New Hampshire Public Television.
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  • What is more intelligent, a squid or an octopus?

    Q: What is more intelligent, a squid or an octopus?

    A: Squids and octopuses, both cephalopods, are the most intelligent known invertebrates. Direct comparison of squid and octopus intelligence is not feasible, as squid are much more difficult to keep in laboratories for study.
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  • How many legs does a squid have?

    Q: How many legs does a squid have?

    A: Squid usually have two tentacles and eight arms that are also called legs. A giant squid's tentacles can be up to 10 meters long and the arms up to 3 meters long. The smallest squid is only 2.5 centimeters in length total.
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  • Q: How many arms does a squid have?

    A: Most types of squid have eight arms, typically arranged in pairs, in addition to two longer feeding tentacles. The squid is a member of the cephalopod group of mollusks that also includes octopodes, and within this group exist more than 280 different types of squid, according to National Geographic.
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  • What do squid eat?

    Q: What do squid eat?

    A: All squid are carnivores and eat mainly fish, shrimp, crabs and even other squid. They are ambush predators, often relying on stealth to sneak up on prey and capture it before it can escape.
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  • Q: How does a squid move?

    A: A squid moves using a system of jet propulsion, pulling water into its mantle cavity, contracting the muscles of the mantle wall and expelling the water through its siphon or funnel. Its fins aid maneuverability and also help with lift and motion while the squid travels at slow speeds.
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  • Q: What are chromatophores, and how do squids use them?

    A: Chromatophores are color-changing cells that allow some animals, such as cephalopods, a class of molluscs that includes octopuses, squids and cuttlefish, to blend in with their surrounding environments. Chromatophores are also used to communicate different messages to potential mates, rivals and predators.
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  • Q: How do squids get oxygen from the water?

    A: Squid extract oxygen from the water using gills, just as fish do. These gills are located in the squid's mantle, the soft but muscular cavity behind the squid's head.
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  • Q: What is a monster squid?

    A: Legends of monster squids or kraken are probably based on sightings of the giant squid, a deep-sea animal known to live in the waters off Norway and Greenland where the kraken legend arose. Giant squids can reach up to 50 feet in length if their tentacles are included.
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  • How long do squids live?

    Q: How long do squids live?

    A: Squids, which are carnivorous cephalopod mollusks of the order Teuthoidea, usually live for only two to three years. Squids are highly developed marine invertebrates with eyes that resemble human eyes.
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  • Q: What are glass squid?

    A: Glass squid are animals who live in the dark sections of the ocean. There are about 60 species of Cranchiidae (glass) squid, and a number of these animals are almost invisible.
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  • What do squids eat?

    Q: What do squids eat?

    A: Squids are carnivorous predators that primarily prey on fish, crustaceans and other squid. Because squid vary greatly in size – some species are less than 1 inch in length, while others exceed 30 feet in length – their specific prey preferences differ markedly from one species to the next. Some squid hunt by chasing down their prey, while others hide and lie in wait for food to swim past them.
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  • Q: Where do giant squids live in the ocean?

    A: Giant squids inhabit all the oceans in the world, although they tend to avoid warm tropical waters and frigid arctic areas. They hunt in the deep ocean at depths between 300 and 1000 meters.
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  • Is calamari an octopus or a squid?

    Q: Is calamari an octopus or a squid?

    A: Calamari is squid. Calamari is an Italian word that is used widely in the food service industry to make squid sound more appetizing to the public. Calamari dishes are common among Asian and Mediterranean cultures, and squid is popular in restaurants in North America.
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  • What are the types of squids?

    Q: What are the types of squids?

    A: According to Squid-World, there are over 300 species of squid that have been identified. All of the identified squid are classified into one of two categories, either myopsida or oegopsida.
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