Squid

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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 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 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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  • 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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  • 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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  • 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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  • 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 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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  • Q: What Are the Adaptations of a Giant Squid

    A: Among the adaptations of a giant squid are a complex brain, advanced nervous system and the largest eyes of any animal. Its two long tentacles lined with teethed suction cups allow it to grasp prey. It draws water into its mantle and forces it out the back as a propulsion system. Its ability to squirt dark ink helps to foil predators.
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  • Q: Do squids have beaks?

    A: Squids do have beaks, and these structures mark the initial part of the digestive system. The beaks are composed of chitin and muscular tissue and resemble a parrot's beak in structure. The beak's function is to capture and break down prey into smaller particles.
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  • Q: How do squids protect themselves?

    A: Squids protect themselves with several techniques and biological mechanisms to blend in with the surrounding environment, counter oncoming threats and defend themselves in the event of an attack by a predator or rival. There are approximately 500 species of squid, and all rank high in intelligence among other invertebrate animals.
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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 is the life span of a giant squid?

    Q: What is the life span of a giant squid?

    A: Scientists believe that giant squids live for less than five years. This estimate is based on study of giant squid remains washed up on beaches. Giant squids are thought to hatch from tiny eggs and grow at a tremendous rate to achieve their 60 foot long adult size.
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  • Q: How do squid reproduce?

    A: Squid engage in internal fertilization, but rather than using a penis for the transference of sperm cells, the males place a packet of sperm cells, called a spermatophore, into the female’s mantle, or body cavity; however, individual squid species exhibit variations on this general model. Shortly after this sperm transfer takes place, the female excretes fertilized eggs into the water.
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  • Q: How many gills does a squid have?

    A: Squid have two gills, one on the left and on the right side of their heads. The gills are part of a squid's respiratory and cardiovascular system. They are feather-like organs used to collect oxygen from water passing through them.
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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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  • 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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  • 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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  • 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: 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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  • 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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