{"id":108,"date":"2026-06-15T09:00:00","date_gmt":"2026-06-15T09:00:00","guid":{"rendered":"https:\/\/www.elbistanx.com\/?p=108"},"modified":"2026-06-15T09:00:00","modified_gmt":"2026-06-15T09:00:00","slug":"octopus-three-hearts","status":"publish","type":"post","link":"https:\/\/www.elbistanx.com\/?p=108","title":{"rendered":"Did You Know? An Octopus Has Three Hearts and Blue Blood"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Some creatures are so extraordinary that the plain facts about them sound made up. The octopus is one of them.<\/p>\n<p class=\"wp-block-paragraph\">Here&#8217;s the truth &#8211; every word of it real:<\/p>\n<ul class=\"wp-block-list\"><li><strong>It has three hearts.<\/strong> Two pump blood to the gills; the third pumps it to the rest of the body. Oddly, that main heart stops beating when the octopus swims &#8211; which is part of why they often prefer to crawl.<\/li><li><strong>Its blood is blue.<\/strong> Instead of iron-based blood like ours, octopuses use a copper-based molecule to carry oxygen, which turns their blood blue. It works far better in cold, low-oxygen deep water.<\/li><li><strong>It has nine &#8220;brains.&#8221;<\/strong> One central brain &#8211; and a cluster of nerve cells in each of its eight arms, so every arm can taste, touch, and even react on its own.<\/li><li><strong>It can taste with its skin and change color in an instant<\/strong>, melting into its surroundings despite, remarkably, being colorblind.<\/li><\/ul>\n<p class=\"wp-block-paragraph\">And they&#8217;re clever. Octopuses solve puzzles, open jars, use tools, and have been known to recognize individual human faces.<\/p>\n<p class=\"wp-block-paragraph\">The octopus is a reminder that &#8220;intelligence&#8221; and &#8220;life&#8221; can take forms wildly different from our own &#8211; and that some of the strangest, most brilliant minds on Earth are quietly drifting through the sea.<\/p>\n<p class=\"wp-block-paragraph\"><em>Three hearts. Blue blood. Eight tasting arms. And we&#8217;re still discovering what else they can do. The ocean keeps its secrets well.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Three hearts, blue blood, and nine &#8220;brains&#8221; &#8211; the octopus is so strange it almost seems to belong to another world.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[9],"tags":[31,30,29],"class_list":["post-108","post","type-post","status-publish","format-standard","hentry","category-did-you-know","tag-did-you-know","tag-ocean-facts","tag-octopus","bwp-blog-post","bwp-masonry-item","bwp-col-3","bwp-no-featured-media","bwp-post-has-title"],"yoast_head":"\n<title>Did You Know? 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