What do snails, spiders, octopods, and the Queen of England have in common? | Protein Data Bank in Europe
![Sarah McAnulty, Ph.D on Twitter: "Squid blood is blue! 💙🦑💙 #FunFact #TheMoreYouKnow🌈 https://t.co/JDKgyZlMSB" / Twitter Sarah McAnulty, Ph.D on Twitter: "Squid blood is blue! 💙🦑💙 #FunFact #TheMoreYouKnow🌈 https://t.co/JDKgyZlMSB" / Twitter](https://pbs.twimg.com/media/DYV1KC_VwAABjwY.jpg)
Sarah McAnulty, Ph.D on Twitter: "Squid blood is blue! 💙🦑💙 #FunFact #TheMoreYouKnow🌈 https://t.co/JDKgyZlMSB" / Twitter
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How big is big and other mysteries about the glorious, blue-blooded giant squid | Deep Ocean | Earth Touch News
York Fish & Oyster Co - Here's a interesting fact! Squid blood is blue, this is because squid blood contains a copper-containing compound called haemocyanin. | Facebook
National Aquarium - FUN FACT: Most cephalopods (including squid!) have three hearts and blue blood! http://ow.ly/CyIFT #CephalopodWeek | Facebook
![How big is big and other mysteries about the glorious, blue-blooded giant squid | Deep Ocean | Earth Touch News How big is big and other mysteries about the glorious, blue-blooded giant squid | Deep Ocean | Earth Touch News](https://www.earthtouchnews.com/media/1945910/giant_squid_melb_aquarium_2016_06_20.jpg)