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		<id>https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=2523%3A_Endangered</id>
		<title>2523: Endangered - Revision history</title>
		<link rel="self" type="application/atom+xml" href="https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=2523%3A_Endangered"/>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;action=history"/>
		<updated>2026-04-21T02:26:23Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=401932&amp;oldid=prev</id>
		<title>1234231587678 at 20:01, 16 December 2025</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=401932&amp;oldid=prev"/>
				<updated>2025-12-16T20:01:07Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 20:01, 16 December 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l10&quot; &gt;Line 10:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The {{w|endangered species}} list (also known as the {{w|IUCN Red List}}) is a system for categorizing species based on &amp;quot;level of extinction&amp;quot;. This list is primarily focused on macroscopic organisms such as animals and plants, as it is these organisms whose extinction is easiest to quantify, and on which most conservation efforts focus. Generally, it is a serious concern when a species is listed on the endangered species list, as this indicates its extinction could be at hand. [[Ponytail]], [[Cueball]], and [[Megan]] in this comic are scientists who maintain an endangered species list of microscopic pathogens. People generally want pathogens and parasites to go extinct,{{citation needed}} unlike harmless plants and animals, so each species added to the pathogen endangered species list is a cause for celebration rather than concern, and the characters in the comic indulge in this celebration by sarcastically pretending to be upset about the potential for pathogen extinction, while in reality being excited about the possibility.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The {{w|endangered species}} list (also known as the {{w|IUCN Red List}}) is a system for categorizing species based on &amp;quot;level of extinction&amp;quot;. This list is primarily focused on macroscopic organisms such as animals and plants, as it is these organisms whose extinction is easiest to quantify, and on which most conservation efforts focus. Generally, it is a serious concern when a species is listed on the endangered species list, as this indicates its extinction could be at hand. [[Ponytail]], [[Cueball]], and [[Megan]] in this comic are scientists who maintain an endangered species list of microscopic pathogens. People generally want pathogens and parasites to go extinct,{{citation needed}} unlike harmless plants and animals, so each species added to the pathogen endangered species list is a cause for celebration rather than concern, and the characters in the comic indulge in this celebration by sarcastically pretending to be upset about the potential for pathogen extinction, while in reality being excited about the possibility.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text mentions some of the species on the list, including {{w|polio}} and {{w|Dracunculiasis|Guinea worm disease}} - diseases that have historically sickened and killed many people but are currently being {{w|Eradication of infectious diseases|eradicated due to worldwide efforts}} - the former, famously, through vaccination, and the latter through education and prevention techniques. As their eradication proceeds, they become more and more endangered of extinction, and thus earn their place on the list. The title also mentions a much less important pathogen, namely a certain strain of an {{w|enterovirus}}, also known as a stomach flu, which unlike polio and guinea worm is likely only to cause temporary discomfort, not death or long-term disability, in infected people. However, the strain in question infected every member of the lab maintaining the list, and as a result of their personal negative experience with it, and the spiteful feelings that resulted from that experience, the characters will celebrate its extinction as much as that of polio, and have accordingly added it to the list. (A similar revenge-based public health policy to combat [[:Category:COVID-19|SARS-CoV-2]] was discussed in [[2448]].)&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text mentions some of the species on the list, including {{w|polio}} and {{w|Dracunculiasis|Guinea worm disease}} - diseases that have historically sickened and killed many people but are currently being {{w|Eradication of infectious diseases|eradicated due to worldwide efforts}} - the former, famously, through vaccination, and the latter through education and prevention techniques. As their eradication proceeds, they become more and more endangered of extinction, and thus earn their place on the list. The title also mentions a much less important pathogen, namely a certain strain of an {{w|enterovirus}}, also known as a stomach flu, which unlike polio and guinea worm is likely only to cause temporary discomfort, not death or long-term disability, in infected people. However, the strain in question infected every member of the lab maintaining the list, and as a result of their personal negative experience with it, and the spiteful feelings that resulted from that experience, the characters will celebrate its extinction as much as that of polio, and have accordingly added it to the list. (A similar revenge-based public health policy to combat [[:Category:COVID-19|SARS-CoV-2]] was discussed in [[2448&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;: Eradication&lt;/ins&gt;]].)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Randall was most likely inspired by [https://www.nature.com/articles/s41579-021-00642-4 this article] about different {{w|influenza}} strains. Influenza causes the yearly flu, which infects 5–15% of the global population annually and causes 3-5 million severe cases worldwide.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Randall was most likely inspired by [https://www.nature.com/articles/s41579-021-00642-4 this article] about different {{w|influenza}} strains. Influenza causes the yearly flu, which infects 5–15% of the global population annually and causes 3-5 million severe cases worldwide.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>1234231587678</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=357178&amp;oldid=prev</id>
		<title>CalibansCreations: /* Explanation */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=357178&amp;oldid=prev"/>
				<updated>2024-11-18T10:07:44Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 10:07, 18 November 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l10&quot; &gt;Line 10:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The {{w|endangered species}} list (also known as the {{w|IUCN Red List}}) is a system for categorizing species based on &amp;quot;level of extinction&amp;quot;. This list is primarily focused on macroscopic organisms such as animals and plants, as it is these organisms whose extinction is easiest to quantify, and on which most conservation efforts focus. Generally, it is a serious concern when a species is listed on the endangered species list, as this indicates its extinction could be at hand. [[Ponytail]], [[Cueball]], and [[Megan]] in this comic are scientists who maintain an endangered species list of microscopic pathogens. People generally want pathogens and parasites to go extinct,{{citation needed}} unlike harmless plants and animals, so each species added to the pathogen endangered species list is a cause for celebration rather than concern, and the characters in the comic indulge in this celebration by sarcastically pretending to be upset about the potential for pathogen extinction, while in reality being excited about the possibility.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The {{w|endangered species}} list (also known as the {{w|IUCN Red List}}) is a system for categorizing species based on &amp;quot;level of extinction&amp;quot;. This list is primarily focused on macroscopic organisms such as animals and plants, as it is these organisms whose extinction is easiest to quantify, and on which most conservation efforts focus. Generally, it is a serious concern when a species is listed on the endangered species list, as this indicates its extinction could be at hand. [[Ponytail]], [[Cueball]], and [[Megan]] in this comic are scientists who maintain an endangered species list of microscopic pathogens. People generally want pathogens and parasites to go extinct,{{citation needed}} unlike harmless plants and animals, so each species added to the pathogen endangered species list is a cause for celebration rather than concern, and the characters in the comic indulge in this celebration by sarcastically pretending to be upset about the potential for pathogen extinction, while in reality being excited about the possibility.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text mentions some of the species on the list, including {{w|polio}} and {{w|Dracunculiasis|Guinea worm disease}} - diseases that have historically sickened and killed many people but are currently being {{w|Eradication of infectious diseases|eradicated due to worldwide efforts}} - the former, famously, through vaccination, and the latter through education and prevention techniques. As their eradication proceeds, they become more and more endangered of extinction, and thus earn their place on the list. The title also mentions a much less important pathogen, namely a certain strain of an {{w|enterovirus}}, also known as a stomach flu, which unlike polio and guinea worm is likely only to cause temporary discomfort, not death or long-term disability, in infected people. However, the strain in question infected every member of the lab maintaining the list, and as a result of their personal negative experience with it, and the spiteful feelings that resulted from that experience, the characters will celebrate its extinction as much as that of polio, and have accordingly added it to the list.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text mentions some of the species on the list, including {{w|polio}} and {{w|Dracunculiasis|Guinea worm disease}} - diseases that have historically sickened and killed many people but are currently being {{w|Eradication of infectious diseases|eradicated due to worldwide efforts}} - the former, famously, through vaccination, and the latter through education and prevention techniques. As their eradication proceeds, they become more and more endangered of extinction, and thus earn their place on the list. The title also mentions a much less important pathogen, namely a certain strain of an {{w|enterovirus}}, also known as a stomach flu, which unlike polio and guinea worm is likely only to cause temporary discomfort, not death or long-term disability, in infected people. However, the strain in question infected every member of the lab maintaining the list, and as a result of their personal negative experience with it, and the spiteful feelings that resulted from that experience, the characters will celebrate its extinction as much as that of polio, and have accordingly added it to the list. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(A similar revenge-based public health policy to combat [[:Category:COVID-19|SARS-CoV-2]] was discussed in [[2448]].)&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Randall was most likely inspired by [https://www.nature.com/articles/s41579-021-00642-4 this article] about different {{w|influenza}} strains. Influenza causes the yearly flu, which infects 5–15% of the global population annually and causes 3-5 million severe cases worldwide.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Randall was most likely inspired by [https://www.nature.com/articles/s41579-021-00642-4 this article] about different {{w|influenza}} strains. Influenza causes the yearly flu, which infects 5–15% of the global population annually and causes 3-5 million severe cases worldwide.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>CalibansCreations</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=352274&amp;oldid=prev</id>
		<title>162.158.106.39: Removed &quot;harmful&quot; from phrase &quot;harmful pathogen&quot; as pathogen implies a disease causing agent.</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=352274&amp;oldid=prev"/>
				<updated>2024-10-08T06:39:48Z</updated>
		
		<summary type="html">&lt;p&gt;Removed &amp;quot;harmful&amp;quot; from phrase &amp;quot;harmful pathogen&amp;quot; as pathogen implies a disease causing agent.&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 06:39, 8 October 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l8&quot; &gt;Line 8:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Explanation==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Explanation==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The {{w|endangered species}} list (also known as the {{w|IUCN Red List}}) is a system for categorizing species based on &amp;quot;level of extinction&amp;quot;. This list is primarily focused on macroscopic organisms such as animals and plants, as it is these organisms whose extinction is easiest to quantify, and on which most conservation efforts focus. Generally, it is a serious concern when a species is listed on the endangered species list, as this indicates its extinction could be at hand. [[Ponytail]], [[Cueball]], and [[Megan]] in this comic are scientists who maintain an endangered species list of microscopic pathogens. People generally want &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;harmful &lt;/del&gt;pathogens and parasites to go extinct,{{citation needed}} unlike harmless plants and animals, so each species added to the pathogen endangered species list is a cause for celebration rather than concern, and the characters in the comic indulge in this celebration by sarcastically pretending to be upset about the potential for pathogen extinction, while in reality being excited about the possibility.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The {{w|endangered species}} list (also known as the {{w|IUCN Red List}}) is a system for categorizing species based on &amp;quot;level of extinction&amp;quot;. This list is primarily focused on macroscopic organisms such as animals and plants, as it is these organisms whose extinction is easiest to quantify, and on which most conservation efforts focus. Generally, it is a serious concern when a species is listed on the endangered species list, as this indicates its extinction could be at hand. [[Ponytail]], [[Cueball]], and [[Megan]] in this comic are scientists who maintain an endangered species list of microscopic pathogens. People generally want pathogens and parasites to go extinct,{{citation needed}} unlike harmless plants and animals, so each species added to the pathogen endangered species list is a cause for celebration rather than concern, and the characters in the comic indulge in this celebration by sarcastically pretending to be upset about the potential for pathogen extinction, while in reality being excited about the possibility.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text mentions some of the species on the list, including {{w|polio}} and {{w|Dracunculiasis|Guinea worm disease}} - diseases that have historically sickened and killed many people but are currently being {{w|Eradication of infectious diseases|eradicated due to worldwide efforts}} - the former, famously, through vaccination, and the latter through education and prevention techniques. As their eradication proceeds, they become more and more endangered of extinction, and thus earn their place on the list. The title also mentions a much less important pathogen, namely a certain strain of an {{w|enterovirus}}, also known as a stomach flu, which unlike polio and guinea worm is likely only to cause temporary discomfort, not death or long-term disability, in infected people. However, the strain in question infected every member of the lab maintaining the list, and as a result of their personal negative experience with it, and the spiteful feelings that resulted from that experience, the characters will celebrate its extinction as much as that of polio, and have accordingly added it to the list.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The title text mentions some of the species on the list, including {{w|polio}} and {{w|Dracunculiasis|Guinea worm disease}} - diseases that have historically sickened and killed many people but are currently being {{w|Eradication of infectious diseases|eradicated due to worldwide efforts}} - the former, famously, through vaccination, and the latter through education and prevention techniques. As their eradication proceeds, they become more and more endangered of extinction, and thus earn their place on the list. The title also mentions a much less important pathogen, namely a certain strain of an {{w|enterovirus}}, also known as a stomach flu, which unlike polio and guinea worm is likely only to cause temporary discomfort, not death or long-term disability, in infected people. However, the strain in question infected every member of the lab maintaining the list, and as a result of their personal negative experience with it, and the spiteful feelings that resulted from that experience, the characters will celebrate its extinction as much as that of polio, and have accordingly added it to the list.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>162.158.106.39</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=272964&amp;oldid=prev</id>
		<title>Davidy22: Reverted edits by Explain xkcd server admin (talk) to last revision by Theusaf</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=272964&amp;oldid=prev"/>
				<updated>2022-05-21T02:52:57Z</updated>
		
		<summary type="html">&lt;p&gt;Reverted edits by &lt;a href=&quot;/wiki/index.php/Special:Contributions/Explain_xkcd_server_admin&quot; title=&quot;Special:Contributions/Explain xkcd server admin&quot;&gt;Explain xkcd server admin&lt;/a&gt; (&lt;a href=&quot;/wiki/index.php?title=User_talk:Explain_xkcd_server_admin&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;User talk:Explain xkcd server admin (page does not exist)&quot;&gt;talk&lt;/a&gt;) to last revision by &lt;a href=&quot;/wiki/index.php/User:Theusaf&quot; title=&quot;User:Theusaf&quot;&gt;Theusaf&lt;/a&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;amp;diff=272964&amp;amp;oldid=272008&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Davidy22</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=272008&amp;oldid=prev</id>
		<title>Explain xkcd server admin at 23:53, 20 May 2022</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=272008&amp;oldid=prev"/>
				<updated>2022-05-20T23:53:19Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;amp;diff=272008&amp;amp;oldid=268221&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Explain xkcd server admin</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=268221&amp;oldid=prev</id>
		<title>Theusaf: Reverted edits by 👖🔥 (talk) to last revision by Jacky720</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=268221&amp;oldid=prev"/>
				<updated>2022-05-11T18:47:20Z</updated>
		
		<summary type="html">&lt;p&gt;Reverted edits by &lt;a href=&quot;/wiki/index.php/Special:Contributions/%F0%9F%91%96%F0%9F%94%A5&quot; title=&quot;Special:Contributions/👖🔥&quot;&gt;👖🔥&lt;/a&gt; (&lt;a href=&quot;/wiki/index.php?title=User_talk:%F0%9F%91%96%F0%9F%94%A5&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;User talk:👖🔥 (page does not exist)&quot;&gt;talk&lt;/a&gt;) to last revision by &lt;a href=&quot;/wiki/index.php/User:Jacky720&quot; title=&quot;User:Jacky720&quot;&gt;Jacky720&lt;/a&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;amp;diff=268221&amp;amp;oldid=265994&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Theusaf</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=265994&amp;oldid=prev</id>
		<title>👖🔥 at 17:30, 11 May 2022</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=265994&amp;oldid=prev"/>
				<updated>2022-05-11T17:30:06Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;amp;diff=265994&amp;amp;oldid=260353&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>👖🔥</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=260353&amp;oldid=prev</id>
		<title>Jacky720: rv</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=260353&amp;oldid=prev"/>
				<updated>2022-05-04T23:36:01Z</updated>
		
		<summary type="html">&lt;p&gt;rv&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;amp;diff=260353&amp;amp;oldid=260335&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Jacky720</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=260335&amp;oldid=prev</id>
		<title>Ex Kay Cee Dee at 23:35, 4 May 2022</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=260335&amp;oldid=prev"/>
				<updated>2022-05-04T23:35:58Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;amp;diff=260335&amp;amp;oldid=258543&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Ex Kay Cee Dee</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=258543&amp;oldid=prev</id>
		<title>Jacky720: rv</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;diff=258543&amp;oldid=prev"/>
				<updated>2022-05-04T23:25:25Z</updated>
		
		<summary type="html">&lt;p&gt;rv&lt;/p&gt;
&lt;a href=&quot;//www.explainxkcd.com/wiki/index.php?title=2523:_Endangered&amp;amp;diff=258543&amp;amp;oldid=258541&quot;&gt;Show changes&lt;/a&gt;</summary>
		<author><name>Jacky720</name></author>	</entry>

	</feed>