{"id":16748,"date":"2022-08-13T19:00:36","date_gmt":"2022-08-13T17:00:36","guid":{"rendered":"https:\/\/www.sciencefocus.com\/?p=123875"},"modified":"2022-08-13T19:18:21","modified_gmt":"2022-08-13T17:18:21","slug":"what-is-the-difference-between-a-squid-and-an-octopus","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/rss_feed\/what-is-the-difference-between-a-squid-and-an-octopus\/","title":{"rendered":"What is the difference between a squid and an octopus?"},"content":{"rendered":"<p class=\"rssexcerpt\"><\/p><p class=\"rssauthor\">By Dr Helen Scales\n                \t\t<\/p><p class=\"rssbyline\">Published: Saturday, 13 August 2022 at 12:00 am<\/p><hr class=\"no-tts wp-block-separator\"\/><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><p>Both groups are remarkably brainy molluscs, especially compared to their relatives including snails, clams and slugs. They have complex nervous systems which, among other things, intricately controls their colour-changing skin.<\/p>\n<p>A recent study of Humboldt squid suggested they have a simple language of patterns displayed across their bodies. Another piece of research on oval squid in Japan has\u00a0recently\u00a0shown that, just like <a href=\"&quot;https:\/\/www.sciencefocus.com\/nature\/octopuses-8-incredible-photos-of-these-magnificent-cephalopods\/&quot;\">octopuses<\/a>, squid can also <a href=\"&quot;https:\/\/www.sciencefocus.com\/news\/secret-of-squids-sparkle-revealed\/&quot;\">match their body colour to their surroundings<\/a> to hide from predators.<\/p>\n<p>There are, however, plenty of differences between octopuses and squid. To tell them apart, all you need\u00a0to\u00a0do is count their numerous appendages. Octopuses have eight arms with sensitive suckers arranged all the way to the tip. Meanwhile,\u00a0squid have eight arms plus an additional pair of limbs with suckers just at the ends. These are tentacles\u00a0that\u00a0they shoot out, like a <a href=\"&quot;https:\/\/www.sciencefocus.com\/nature\/how-do-chameleons-change-colour\/&quot;\">chameleon<\/a>\u2019s tongue, to grab and drag in prey.<\/p>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?webp=true&amp;quality=90&amp;resize=300%2C224,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?quality=90&amp;resize=300%2C224,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?webp=true&amp;quality=90&amp;resize=355%2C265,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?quality=90&amp;resize=355%2C265,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?webp=true&amp;quality=90&amp;resize=405%2C302,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?quality=90&amp;resize=405%2C302,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?webp=true&amp;quality=90&amp;resize=554%2C413,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?quality=90&amp;resize=554%2C413,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?webp=true&amp;quality=90&amp;resize=620%2C463,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?quality=90&amp;resize=620%2C463,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?webp=true&amp;quality=90&amp;resize=408%2C304,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?quality=90&amp;resize=408%2C304,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?webp=true&amp;quality=90&amp;resize=556%2C415,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?quality=90&amp;resize=556%2C415,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-124509\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/Whats-the-difference-between-an-octopus-and-a-squid-0620995.jpg?quality=90&amp;resize=620%2C463&quot;\" width=\"&quot;620&quot;\" height=\"&quot;462&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> Most octopuses are solitary and live close to the sea floor \u00a9 Getty images<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"\/><\/div>\n<p>There are around 300 species of octopuses, and a similar number of squid which occupy different ocean habitats. Most octopuses live close to the seabed, with a few exceptions like blanket octopuses and argonauts. Usually, they\u2019re solitary and often thoroughly antisocial (in aquariums they tend to eat each other).<\/p>\n<p>The exceptions\u00a0are two locations in Australia, nicknamed Octopolis and Octlantis, where octopuses have been found living rather awkwardly together in close neighbourhoods. In contrast, squid swim through open seas, often in coordinated shoals.<\/p>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?webp=true&amp;quality=90&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?quality=90&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?webp=true&amp;quality=90&amp;resize=355%2C237,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?quality=90&amp;resize=355%2C237,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?webp=true&amp;quality=90&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?quality=90&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?webp=true&amp;quality=90&amp;resize=554%2C369,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?quality=90&amp;resize=554%2C369,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?webp=true&amp;quality=90&amp;resize=620%2C413,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?quality=90&amp;resize=620%2C413,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?webp=true&amp;quality=90&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?quality=90&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?webp=true&amp;quality=90&amp;resize=556%2C371,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?quality=90&amp;resize=556%2C371,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-124511\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/08\/A-school-of-Caribbean-Reef-Squid-near-Honduras-60c67a4.jpg?quality=90&amp;resize=620%2C413&quot;\" width=\"&quot;620&quot;\" height=\"&quot;413&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> A shoal of Caribbean Reef Squid (<em>Sepioteuthis sepioidea<\/em>) hovering over a tropical coral reef off the island of Roatan, Honduras. \u00a9 Getty images<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"\/><\/div>\n<p>Octopuses and squid also differ in the way they produce offspring. For octopuses, male-female pairs mate at arm\u2019s length. The female then lays her eggs in a safe spot on the seabed and watches over them until they hatch. Squid mate in groups and leave their eggs to fend for themselves, stuck to seaweed, rocks and corals.<\/p>\n<p><strong>Read more:<\/strong><\/p>\n<ul><li><a href=\"&quot;https:\/\/www.sciencefocus.com\/nature\/why-does-an-octopus-have-more-than-one-heart\/&quot;\">How many hearts does an octopus have?<\/a><\/li>\n<li><a href=\"&quot;https:\/\/www.sciencefocus.com\/nature\/everything-you-wanted-to-know-about-the-giant-squid\/&quot;\">Everything you wanted to know about the giant squid<\/a><\/li>\n<li><a href=\"&quot;https:\/\/www.sciencefocus.com\/nature\/how-do-squid-survive-extreme-water-pressure-in-the-deep-sea\/&quot;\">How do squid survive extreme water pressure in the deep sea?<\/a><\/li>\n<li><a href=\"&quot;https:\/\/www.sciencefocus.com\/nature\/everything-you-wanted-to-know-about-cuttlefish\/&quot;\">Everything you wanted to know about cuttlefish<\/a><\/li>\n<\/ul><p><strong>Asked by: Andrew White, Hull<\/strong><\/p>\n<p><em>To submit your questions email us at questions@sciencefocus.com (don\u2019t forget to include your name and location)<\/em><\/p><\/body><\/html>\n<hr class=\"no-tts wp-block-separator\"\/>","protected":false},"excerpt":{"rendered":"<p>By Dr Helen Scales Published: Saturday, 13 August 2022 at 12:00 am Both groups are remarkably brainy molluscs, especially compared to their relatives including snails, clams and slugs. They have complex nervous systems which, among other things, intricately controls their colour-changing skin. A recent study of Humboldt squid suggested they have a simple language of [&hellip;]<\/p>\n","protected":false},"author":24,"featured_media":16749,"template":"","categories":[30],"acf":{"readingTimeMinutes":"2"},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/08\/what-is-the-difference-between-a-squid-and-an-octopus.jpg",1200,511,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/08\/what-is-the-difference-between-a-squid-and-an-octopus-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/08\/what-is-the-difference-between-a-squid-and-an-octopus-300x128.jpg",300,128,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/08\/what-is-the-difference-between-a-squid-and-an-octopus-768x327.jpg",768,327,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/08\/what-is-the-difference-between-a-squid-and-an-octopus-1024x436.jpg",800,341,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/08\/what-is-the-difference-between-a-squid-and-an-octopus.jpg",1200,511,false],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/08\/what-is-the-difference-between-a-squid-and-an-octopus.jpg",1200,511,false]},"uagb_author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/author\/importmanagerhubsprylab-com\/"},"uagb_comment_info":0,"uagb_excerpt":"By Dr Helen Scales Published: Saturday, 13 August 2022 at 12:00 am Both groups are remarkably brainy molluscs, especially compared to their relatives including snails, clams and slugs. They have complex nervous systems which, among other things, intricately controls their colour-changing skin. A recent study of Humboldt squid suggested they have a simple language of&hellip;","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/rss_feed\/16748"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/rss_feed"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/types\/rss_feed"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/users\/24"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/media\/16749"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/media?parent=16748"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/categories?post=16748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}