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	<title>tentacles &#8211; Critter Science</title>
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	<title>tentacles &#8211; Critter Science</title>
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	<item>
		<title>The Mysterious Phantom Jellyfish</title>
		<link>https://critter.science/the-mysterious-phantom-jellyfish/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=the-mysterious-phantom-jellyfish</link>
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		<dc:creator><![CDATA[Critterman]]></dc:creator>
		<pubDate>Mon, 08 Dec 2025 09:00:24 +0000</pubDate>
				<category><![CDATA[Daily Critter Facts]]></category>
		<category><![CDATA[Fish Facts]]></category>
		<category><![CDATA[Jellyfish Facts]]></category>
		<category><![CDATA[bell]]></category>
		<category><![CDATA[deap sea]]></category>
		<category><![CDATA[jellies]]></category>
		<category><![CDATA[jelly]]></category>
		<category><![CDATA[Jellyfish]]></category>
		<category><![CDATA[ocean]]></category>
		<category><![CDATA[oceans]]></category>
		<category><![CDATA[phantom]]></category>
		<category><![CDATA[phantom jellyfish]]></category>
		<category><![CDATA[tentacles]]></category>
		<category><![CDATA[worldwide]]></category>
		<guid isPermaLink="false">https://critter.science/?p=22755</guid>

					<description><![CDATA[<a href="https://critter.science/the-mysterious-phantom-jellyfish/" title="The Mysterious Phantom Jellyfish" rel="nofollow"><img width="300" height="130" src="https://critter.science/wp-content/uploads/2025/11/pj1a-300x130.jpg" class="webfeedsFeaturedVisual wp-post-image" alt="phantom jellyfish" style="display: block; margin-bottom: 5px; clear:both;max-width: 100%;" link_thumbnail="1" decoding="async" srcset="https://critter.science/wp-content/uploads/2025/11/pj1a-300x130.jpg 300w, https://critter.science/wp-content/uploads/2025/11/pj1a-800x347.jpg 800w, https://critter.science/wp-content/uploads/2025/11/pj1a-scaled.jpg 900w" sizes="(max-width: 300px) 100vw, 300px" /></a><p>This article was originally published on <a rel="nofollow" href="https://critter.science">Critter Science</a>.</p>
<p>The phantom jellyfish, aka giant phantom jelly, is the only known species in the genus of deep sea jellyfish, Stygiomedusa. They belong to the Ulmaridae family. While not currently evaluated by the IUCN, these jellies likely face the threats of deep-sea fishing, mining, and oil exploration. Their population trend is [&#x2026;]</p>
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		<title>The Fascinating Squid</title>
		<link>https://critter.science/the-fascinating-squid/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=the-fascinating-squid</link>
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		<dc:creator><![CDATA[Critterman]]></dc:creator>
		<pubDate>Fri, 27 Aug 2021 07:00:48 +0000</pubDate>
				<category><![CDATA[Daily Critter Facts]]></category>
		<category><![CDATA[Cephalopod Facts]]></category>
		<category><![CDATA[Fish Facts]]></category>
		<category><![CDATA[arms]]></category>
		<category><![CDATA[cephalopod]]></category>
		<category><![CDATA[cephalopods]]></category>
		<category><![CDATA[chromatophores]]></category>
		<category><![CDATA[ink]]></category>
		<category><![CDATA[ocean]]></category>
		<category><![CDATA[sea]]></category>
		<category><![CDATA[squid]]></category>
		<category><![CDATA[tentacles]]></category>
		<category><![CDATA[worldwide]]></category>
		<guid isPermaLink="false">https://critter.science/?p=13081</guid>

					<description><![CDATA[<a href="https://critter.science/the-fascinating-squid/" title="The Fascinating Squid" rel="nofollow"><img width="300" height="143" src="https://critter.science/wp-content/uploads/2021/08/squid1a-300x143.jpg" class="webfeedsFeaturedVisual wp-post-image" alt="squid" style="display: block; margin-bottom: 5px; clear:both;max-width: 100%;" link_thumbnail="1" decoding="async" srcset="https://critter.science/wp-content/uploads/2021/08/squid1a-300x143.jpg 300w, https://critter.science/wp-content/uploads/2021/08/squid1a-800x380.jpg 800w, https://critter.science/wp-content/uploads/2021/08/squid1a-scaled.jpg 900w" sizes="(max-width: 300px) 100vw, 300px" /></a><p>This article was originally published on <a rel="nofollow" href="https://critter.science">Critter Science</a>.</p>
<p>There are over 300 known species of squid. This article will talk about the fascinating squid, in general; no specific species. These cephalopods all have elongated bodies, big eyes, 8 arms and 2 tentacles. Some even have up to 10 arms. As the old joke goes: How do you make [&#x2026;]</p>
<p>Thanks for reading! Follow <a rel="nofollow" href="https://critter.science/author/cee0ea80615b8bda2caf6c626c2b91f1/">Critterman</a> for more updates and insights.</p>
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		<title>The Amazing Mimic Octopus</title>
		<link>https://critter.science/the-amazing-mimic-octopus/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=the-amazing-mimic-octopus</link>
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		<dc:creator><![CDATA[Critterman]]></dc:creator>
		<pubDate>Tue, 26 Jan 2021 07:00:58 +0000</pubDate>
				<category><![CDATA[Daily Critter Facts]]></category>
		<category><![CDATA[Cephalopod Facts]]></category>
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		<category><![CDATA[camouflage]]></category>
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		<category><![CDATA[lionfish]]></category>
		<category><![CDATA[mimic]]></category>
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		<category><![CDATA[octopus]]></category>
		<category><![CDATA[reef]]></category>
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		<category><![CDATA[sea snake]]></category>
		<category><![CDATA[tentacles]]></category>
		<guid isPermaLink="false">https://critter.science/?p=10178</guid>

					<description><![CDATA[<a href="https://critter.science/the-amazing-mimic-octopus/" title="The Amazing Mimic Octopus" rel="nofollow"><img width="300" height="170" src="https://critter.science/wp-content/uploads/2020/12/mo1-300x170.jpg" class="webfeedsFeaturedVisual wp-post-image" alt="mimic octopus" style="display: block; margin-bottom: 5px; clear:both;max-width: 100%;" link_thumbnail="1" decoding="async" fetchpriority="high" srcset="https://critter.science/wp-content/uploads/2020/12/mo1-300x170.jpg 300w, https://critter.science/wp-content/uploads/2020/12/mo1-800x452.jpg 800w, https://critter.science/wp-content/uploads/2020/12/mo1-scaled.jpg 900w" sizes="(max-width: 300px) 100vw, 300px" /></a><p>This article was originally published on <a rel="nofollow" href="https://critter.science">Critter Science</a>.</p>
<p>Hailing from the Indo-Pacific region, the mimic octopus brings new meaning to blending in. Their name is derived, in part, from the Greek word tha&#xFB;ma, meaning &#x201C;marvel&#x201D; or &#x201C;miracle&#x201D;. They prefer warm, muddy waters like those found in river mouths and estuaries. Even though they are subject to habitat destruction [&#x2026;]</p>
<p>Thanks for reading! Follow <a rel="nofollow" href="https://critter.science/author/cee0ea80615b8bda2caf6c626c2b91f1/">Critterman</a> for more updates and insights.</p>
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		<title>The Beautiful But Dangerous Portuguese Man O&#8217; War</title>
		<link>https://critter.science/the-beautiful-but-dangerous-portuguese-man-o-war/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=the-beautiful-but-dangerous-portuguese-man-o-war</link>
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		<dc:creator><![CDATA[Critterman]]></dc:creator>
		<pubDate>Fri, 19 Jul 2019 10:01:55 +0000</pubDate>
				<category><![CDATA[Daily Critter Facts]]></category>
		<category><![CDATA[Fish Facts]]></category>
		<category><![CDATA[jelyfish]]></category>
		<category><![CDATA[ocean]]></category>
		<category><![CDATA[Portuguese man o' war]]></category>
		<category><![CDATA[sting]]></category>
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		<guid isPermaLink="false">https://critter.science/?p=8006</guid>

					<description><![CDATA[<a href="https://critter.science/the-beautiful-but-dangerous-portuguese-man-o-war/" title="The Beautiful But Dangerous Portuguese Man O&#8217; War" rel="nofollow"><img width="300" height="132" src="https://critter.science/wp-content/uploads/2019/07/pmow1a-300x132.jpg" class="webfeedsFeaturedVisual wp-post-image" alt="Portuguese man o&#039; war" style="display: block; margin-bottom: 5px; clear:both;max-width: 100%;" link_thumbnail="1" decoding="async" srcset="https://critter.science/wp-content/uploads/2019/07/pmow1a-300x132.jpg 300w, https://critter.science/wp-content/uploads/2019/07/pmow1a-800x351.jpg 800w, https://critter.science/wp-content/uploads/2019/07/pmow1a-scaled.jpg 900w" sizes="(max-width: 300px) 100vw, 300px" /></a><p>This article was originally published on <a rel="nofollow" href="https://critter.science">Critter Science</a>.</p>
<p>Despite how it looks, the Portuguese man o&#x2019; war is not a true jellyfish but rather a siphonophore, which is not actually a single organism (true jellyfish are a single organism), but a colonial creature made up of 4 specialized animals of the same species, called zooids (polyps). These polyps [&#x2026;]</p>
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		<title>Arg, It&#8217;s the Giant Squid!</title>
		<link>https://critter.science/arg-its-the-giant-squid/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=arg-its-the-giant-squid</link>
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		<dc:creator><![CDATA[Critterman]]></dc:creator>
		<pubDate>Wed, 10 Jul 2019 10:01:59 +0000</pubDate>
				<category><![CDATA[Daily Critter Facts]]></category>
		<category><![CDATA[Cephalopod Facts]]></category>
		<category><![CDATA[Fish Facts]]></category>
		<category><![CDATA[cephalopod]]></category>
		<category><![CDATA[giant squid]]></category>
		<category><![CDATA[ink]]></category>
		<category><![CDATA[ocean]]></category>
		<category><![CDATA[octopus]]></category>
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		<guid isPermaLink="false">https://critter.science/?p=7961</guid>

					<description><![CDATA[<a href="https://critter.science/arg-its-the-giant-squid/" title="Arg, It&#8217;s the Giant Squid!" rel="nofollow"><img width="300" height="139" src="https://critter.science/wp-content/uploads/2019/07/gs1b-300x139.jpg" class="webfeedsFeaturedVisual wp-post-image" alt="giant squid" style="display: block; margin-bottom: 5px; clear:both;max-width: 100%;" link_thumbnail="1" decoding="async" srcset="https://critter.science/wp-content/uploads/2019/07/gs1b-300x139.jpg 300w, https://critter.science/wp-content/uploads/2019/07/gs1b-800x370.jpg 800w, https://critter.science/wp-content/uploads/2019/07/gs1b-scaled.jpg 900w" sizes="(max-width: 300px) 100vw, 300px" /></a><p>This article was originally published on <a rel="nofollow" href="https://critter.science">Critter Science</a>.</p>
<p>Not only is the giant squid the largest of all the cephalopods, it&#x2019;s also the largest living <a class="glossaryLink" aria-describedby="tt" data-cmtooltip="&#60;div class=glossaryItemTitle&#62;invertebrate&#60;/div&#62;&#60;div class=glossaryItemBody&#62;An invertebrate is an animal lacking a backbone, such as an &#38;lt;strong&#38;gt;arthropod&#38;lt;/strong&#38;gt;, &#38;lt;strong&#38;gt;mollusk&#38;lt;/strong&#38;gt;, &#38;lt;strong&#38;gt;annelid&#38;lt;/strong&#38;gt;, &#38;lt;strong&#38;gt;coelenterate&#38;lt;/strong&#38;gt;, etc. The invertebrates constitute an artificial division of the animal kingdom, comprising 95% of animal species and about 30 different phyla.&#60;/div&#62;" href="https://critter.science/glossary/invertebrate/" data-gt-translate-attributes='[{"attribute":"data-cmtooltip", "format":"html"}]' tabindex="0" role="link">invertebrate</a> in the world! They can be found in the Northern parts of the Atlantic Ocean, the Gulf of Mexico, the Sea of Japan, the Bering Sea, Northern parts of the Pacific Ocean, [&#x2026;]</p>
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		<title>The Bizarre and Amazing Blanket Octopus</title>
		<link>https://critter.science/the-bizarre-and-amazing-blanket-octopus/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=the-bizarre-and-amazing-blanket-octopus</link>
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		<dc:creator><![CDATA[Critterman]]></dc:creator>
		<pubDate>Thu, 04 Jul 2019 10:05:40 +0000</pubDate>
				<category><![CDATA[Daily Critter Facts]]></category>
		<category><![CDATA[Cephalopod Facts]]></category>
		<category><![CDATA[Fish Facts]]></category>
		<category><![CDATA[blanket octopus]]></category>
		<category><![CDATA[dimorphism]]></category>
		<category><![CDATA[ink]]></category>
		<category><![CDATA[Jellyfish]]></category>
		<category><![CDATA[ocean]]></category>
		<category><![CDATA[octopus]]></category>
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		<guid isPermaLink="false">https://critter.science/?p=7874</guid>

					<description><![CDATA[<a href="https://critter.science/the-bizarre-and-amazing-blanket-octopus/" title="The Bizarre and Amazing Blanket Octopus" rel="nofollow"><img width="300" height="129" src="https://critter.science/wp-content/uploads/2019/07/bo1a-300x129.jpg" class="webfeedsFeaturedVisual wp-post-image" alt="blanket octopus" style="display: block; margin-bottom: 5px; clear:both;max-width: 100%;" link_thumbnail="1" decoding="async" srcset="https://critter.science/wp-content/uploads/2019/07/bo1a-300x129.jpg 300w, https://critter.science/wp-content/uploads/2019/07/bo1a-800x345.jpg 800w, https://critter.science/wp-content/uploads/2019/07/bo1a-1536x662.jpg 1536w, https://critter.science/wp-content/uploads/2019/07/bo1a-2048x882.jpg 2048w, https://critter.science/wp-content/uploads/2019/07/bo1a-scaled.jpg 900w" sizes="(max-width: 300px) 100vw, 300px" /></a><p>This article was originally published on <a rel="nofollow" href="https://critter.science">Critter Science</a>.</p>
<p>The blanket octopus is as strange as it is beautiful. With a large drapery spanning between their arms, a secret weapon (borrowed from another animal), a massive size difference between males and females, and an ultra secretive lifestyle. This oceanic wanderer comes to you, on special request, from my friend [&#x2026;]</p>
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		<title>The Painful and Potentially Deadly Box Jellyfish</title>
		<link>https://critter.science/the-painful-and-potentially-deadly-box-jellyfish/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=the-painful-and-potentially-deadly-box-jellyfish</link>
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		<dc:creator><![CDATA[Critterman]]></dc:creator>
		<pubDate>Fri, 26 Oct 2018 17:14:55 +0000</pubDate>
				<category><![CDATA[Daily Critter Facts]]></category>
		<category><![CDATA[Fish Facts]]></category>
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		<category><![CDATA[Australia]]></category>
		<category><![CDATA[box jelly]]></category>
		<category><![CDATA[box jellyfish]]></category>
		<category><![CDATA[jellies]]></category>
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		<guid isPermaLink="false">https://critter.science/?p=6923</guid>

					<description><![CDATA[<a href="https://critter.science/the-painful-and-potentially-deadly-box-jellyfish/" title="The Painful and Potentially Deadly Box Jellyfish" rel="nofollow"><img width="300" height="162" src="https://critter.science/wp-content/uploads/2018/10/bj1b-300x162.png" class="webfeedsFeaturedVisual wp-post-image" alt="box jellyfish" style="display: block; margin-bottom: 5px; clear:both;max-width: 100%;" link_thumbnail="1" decoding="async" srcset="https://critter.science/wp-content/uploads/2018/10/bj1b-300x162.png 300w, https://critter.science/wp-content/uploads/2018/10/bj1b-800x433.png 800w, https://critter.science/wp-content/uploads/2018/10/bj1b.png 900w" sizes="(max-width: 300px) 100vw, 300px" /></a><p>This article was originally published on <a rel="nofollow" href="https://critter.science">Critter Science</a>.</p>
<p>The great barrier reef&#x2026; Home of beauty and wonder. Also the home to one of the most dangerous animals in nature, the box jellyfish! Box jellies are small in appearance but pack a highly venomous punch capable of death by heart attack due to sheer pain. There are approximately 51 [&#x2026;]</p>
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