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<title>LiveScience: Life's Little Mysteries</title>
<link>http://www.livescience.com</link>
<description>Explore the daily mysteries of life, a new mystery is solved every day!</description><lastBuildDate>Sat, 28 Nov 2009 05:34:34 EST</lastBuildDate>
<language>en</language>



<image><link>http://www.livescience.com/mysteries/</link><url>http://images.livescience.com/template_images/navigation/livescience_logo_88x31.jpg</url><title>LiveScience</title></image><atom10:link xmlns:atom10="http://www.w3.org/2005/Atom" rel="self" href="http://feeds.livescience.com/livescience/mysteries" type="application/rss+xml" /><feedburner:emailServiceId xmlns:feedburner="http://rssnamespace.org/feedburner/ext/1.0">livescience/mysteries</feedburner:emailServiceId><feedburner:feedburnerHostname xmlns:feedburner="http://rssnamespace.org/feedburner/ext/1.0">http://feedburner.google.com</feedburner:feedburnerHostname><atom10:link xmlns:atom10="http://www.w3.org/2005/Atom" rel="hub" href="http://pubsubhubbub.appspot.com" /><item>
		<title>What's the Best Single Food to Eat?</title>
		<link>http://www.livescience.com/mysteries/090915-llm-best-food.html</link>
		<description>There's no good answer to this one, because we humans need a range of nutrients from a variety of foods to be healthy.&lt;div class="feedflare"&gt;
&lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=EauJ0bzhyN0:25ZJRKnVcec:yIl2AUoC8zA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=yIl2AUoC8zA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=EauJ0bzhyN0:25ZJRKnVcec:7Q72WNTAKBA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=7Q72WNTAKBA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=EauJ0bzhyN0:25ZJRKnVcec:2mJPEYqXBVI"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=2mJPEYqXBVI" border="0"&gt;&lt;/img&gt;&lt;/a&gt;
&lt;/div&gt;</description>
		<guid>http://www.livescience.com/mysteries/090915-llm-best-food.html</guid>
		<pubDate>Tue, 15 Sep 2009 20:36:36 EDT</pubDate>
		<media:thumbnail url="http://i.livescience.com/images/top10_vegetables_01.jpg" height="110" width="163" />
</item>

<item>
		<title>Wimbledon Wants to Know: Are Pigeons Pests?</title>
		<link>http://www.livescience.com/mysteries/080626-llm-pigeon-pests.html</link>
		<description>Most pest definitions would surely include feral pigeons.&lt;div class="feedflare"&gt;
&lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=r3hgjRiPjKo:dKnrD6ORujM:yIl2AUoC8zA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=yIl2AUoC8zA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=r3hgjRiPjKo:dKnrD6ORujM:7Q72WNTAKBA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=7Q72WNTAKBA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=r3hgjRiPjKo:dKnrD6ORujM:2mJPEYqXBVI"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=2mJPEYqXBVI" border="0"&gt;&lt;/img&gt;&lt;/a&gt;
&lt;/div&gt;</description>
		<guid>http://www.livescience.com/mysteries/080626-llm-pigeon-pests.html</guid>
		<pubDate>Tue, 15 Sep 2009 14:15:57 EDT</pubDate>
		<media:thumbnail url="http://i.livescience.com/images/070822_pigeons_bridge_01.jpg" height="110" width="163" />
</item>

<item>
		<title>What Happens When an Astronaut Sneezes?</title>
		<link>http://www.livescience.com/mysteries/090902-space-sneeze.html</link>
		<description>Best to do the sneezing inside the a shuttle or the space station, not on a spacewalk, when it can get real messy.&lt;div class="feedflare"&gt;
&lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=-w7UrNMolnU:At73WUnJ9ik:yIl2AUoC8zA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=yIl2AUoC8zA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=-w7UrNMolnU:At73WUnJ9ik:7Q72WNTAKBA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=7Q72WNTAKBA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=-w7UrNMolnU:At73WUnJ9ik:2mJPEYqXBVI"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=2mJPEYqXBVI" border="0"&gt;&lt;/img&gt;&lt;/a&gt;
&lt;/div&gt;</description>
		<guid>http://www.livescience.com/mysteries/090902-space-sneeze.html</guid>
		<pubDate>Tue, 15 Sep 2009 13:45:05 EDT</pubDate>
		<media:thumbnail url="http://i.livescience.com/images/090429-sneeze-cdc-01.jpg" height="110" width="163" />
</item>

<item>
		<title>How Much Spit Does a Person Produce?</title>
		<link>http://www.livescience.com/mysteries/090908-llm-spit.html</link>
		<description>Our salivary glands churn out plenty of spit to wash down food and fight off infections.&lt;div class="feedflare"&gt;
&lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=f_rjz9gBmYY:00jqpcvSS0Y:yIl2AUoC8zA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=yIl2AUoC8zA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=f_rjz9gBmYY:00jqpcvSS0Y:7Q72WNTAKBA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=7Q72WNTAKBA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=f_rjz9gBmYY:00jqpcvSS0Y:2mJPEYqXBVI"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=2mJPEYqXBVI" border="0"&gt;&lt;/img&gt;&lt;/a&gt;
&lt;/div&gt;</description>
		<guid>http://www.livescience.com/mysteries/090908-llm-spit.html</guid>
		<pubDate>Tue, 08 Sep 2009 08:31:30 EDT</pubDate>
		<media:thumbnail url="http://i.livescience.com/images/generic_aspirin_woman_01.jpg" height="110" width="163" />
</item>

<item>
		<title>What Was the Worst Nuclear Accident in History?</title>
		<link>http://www.livescience.com/mysteries/090903-llm-nuclear-accident.html</link>
		<description>The blast, which blew the 2,000-ton lid off the reactor, sent out 400 times more radioactive fallout than the Hiroshima bomb.&lt;div class="feedflare"&gt;
&lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=uhoZ7c9lzmU:SG35jN0Q-4s:yIl2AUoC8zA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=yIl2AUoC8zA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=uhoZ7c9lzmU:SG35jN0Q-4s:7Q72WNTAKBA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=7Q72WNTAKBA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=uhoZ7c9lzmU:SG35jN0Q-4s:2mJPEYqXBVI"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=2mJPEYqXBVI" border="0"&gt;&lt;/img&gt;&lt;/a&gt;
&lt;/div&gt;</description>
		<guid>http://www.livescience.com/mysteries/090903-llm-nuclear-accident.html</guid>
		<pubDate>Thu, 03 Sep 2009 13:35:08 EDT</pubDate>
		<media:thumbnail url="http://i.livescience.com/images/090517-nuclear-bomb-trinity-01.jpg" height="110" width="163" />
</item>

<item>
		<title>What Happens When an Astronaut Sneezes?</title>
		<link>http://www.livescience.com/mysteries/090902-llm-space-sneeze.html</link>
		<description>Best to do the sneezing inside a shuttle or the space station, not on a spacewalk, when it can get real messy.&lt;div class="feedflare"&gt;
&lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=nvEtFzD0wWM:45ymjO6Xh-E:yIl2AUoC8zA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=yIl2AUoC8zA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=nvEtFzD0wWM:45ymjO6Xh-E:7Q72WNTAKBA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=7Q72WNTAKBA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=nvEtFzD0wWM:45ymjO6Xh-E:2mJPEYqXBVI"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=2mJPEYqXBVI" border="0"&gt;&lt;/img&gt;&lt;/a&gt;
&lt;/div&gt;</description>
		<guid>http://www.livescience.com/mysteries/090902-llm-space-sneeze.html</guid>
		<pubDate>Wed, 02 Sep 2009 12:26:05 EDT</pubDate>
		<media:thumbnail url="http://i.livescience.com/images/090429-sneeze-cdc-01.jpg" height="110" width="163" />
</item>

<item>
		<title>Are Naked Mole Rats Blind?</title>
		<link>http://www.livescience.com/mysteries/090902-llm-naked-mole-rats.html</link>
		<description>They live underground, but these hairless creatures have a keen, if limited, sense of sight.&lt;div class="feedflare"&gt;
&lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=lHzrPwh2SEo:zapnAw4GE04:yIl2AUoC8zA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=yIl2AUoC8zA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=lHzrPwh2SEo:zapnAw4GE04:7Q72WNTAKBA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=7Q72WNTAKBA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=lHzrPwh2SEo:zapnAw4GE04:2mJPEYqXBVI"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=2mJPEYqXBVI" border="0"&gt;&lt;/img&gt;&lt;/a&gt;
&lt;/div&gt;</description>
		<guid>http://www.livescience.com/mysteries/090902-llm-naked-mole-rats.html</guid>
		<pubDate>Wed, 02 Sep 2009 11:54:35 EDT</pubDate>
		<media:thumbnail url="http://i.livescience.com/images/061009_mole_rat_02.jpg" height="110" width="163" />
</item>

<item>
		<title>If Blood Is Red, Why Are Veins Blue?</title>
		<link>http://www.livescience.com/mysteries/090828-llm-why-veins-blue.html</link>
		<description>Blood is always red, actually.&lt;div class="feedflare"&gt;
&lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=EXItWkFrIK8:5B1VTNIVraE:yIl2AUoC8zA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=yIl2AUoC8zA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=EXItWkFrIK8:5B1VTNIVraE:7Q72WNTAKBA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=7Q72WNTAKBA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=EXItWkFrIK8:5B1VTNIVraE:2mJPEYqXBVI"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=2mJPEYqXBVI" border="0"&gt;&lt;/img&gt;&lt;/a&gt;
&lt;/div&gt;</description>
		<guid>http://www.livescience.com/mysteries/090828-llm-why-veins-blue.html</guid>
		<pubDate>Fri, 28 Aug 2009 13:49:35 EDT</pubDate>
		<media:thumbnail url="http://i.livescience.com/images/top10_heart_blood.jpg" height="110" width="163" />
</item>

<item>
		<title>Why Do I Laugh at Funny Things?</title>
		<link>http://www.livescience.com/mysteries/081217-llm-laughter.html</link>
		<description>Laughter spreads positive emotions, decreases stress, and contributes to the cohesiveness of a group.&lt;div class="feedflare"&gt;
&lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=xURtl-0gSoc:1G7qi6aagmg:yIl2AUoC8zA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=yIl2AUoC8zA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=xURtl-0gSoc:1G7qi6aagmg:7Q72WNTAKBA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=7Q72WNTAKBA" border="0"&gt;&lt;/img&gt;&lt;/a&gt;
&lt;/div&gt;</description>
		<guid>http://www.livescience.com/mysteries/081217-llm-laughter.html</guid>
		<pubDate>Wed, 17 Dec 2008 05:49:07 EST</pubDate>
		<media:thumbnail url="http://i.livescience.com/images/081217-girls-laughing-01.jpg" height="110" width="163" />
</item>

<item>
		<title>Why Can't Human Beings Breathe Underwater?</title>
		<link>http://www.livescience.com/mysteries/081119-llm-breathe-underwater.html</link>
		<description>When you breathe in air, the air travels from your nose, down your trachea (windpipe), and into your lungs.&lt;div class="feedflare"&gt;
&lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=qRR_Dr_4xcw:x2d7TC2yhVo:yIl2AUoC8zA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=yIl2AUoC8zA" border="0"&gt;&lt;/img&gt;&lt;/a&gt; &lt;a href="http://feeds.livescience.com/~ff/livescience/mysteries?a=qRR_Dr_4xcw:x2d7TC2yhVo:7Q72WNTAKBA"&gt;&lt;img src="http://feeds.feedburner.com/~ff/livescience/mysteries?d=7Q72WNTAKBA" border="0"&gt;&lt;/img&gt;&lt;/a&gt;
&lt;/div&gt;</description>
		<guid>http://www.livescience.com/mysteries/081119-llm-breathe-underwater.html</guid>
		<pubDate>Wed, 19 Nov 2008 15:20:13 EST</pubDate>
		<media:thumbnail url="http://i.livescience.com/images/generic_water_drop_01.jpg" height="110" width="163" />
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