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	<title>Comments on: Early hunters killed mastodons with mastodons (Also, you can chuck a bone spear through a car. Who knew?)</title>
	<atom:link href="http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/feed/" rel="self" type="application/rss+xml" />
	<link>http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/</link>
	<description>Dive into the awe-inspiring, beautiful and quirky world of science news with award-winning writer Ed Yong. No previous experience required.</description>
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		<title>By: Trevor Jones</title>
		<link>http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/comment-page-1/#comment-64622</link>
		<dc:creator>Trevor Jones</dc:creator>
		<pubDate>Wed, 23 Nov 2011 17:32:11 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/notrocketscience/?p=5607#comment-64622</guid>
		<description>Surely this bone fragment could have penetrated the rib if the animal fell from a cliff to its death. there are lots of possible explanations and cyniscim but I feel that using this bone splinter to rescue Clovis theory is clutching at straws or splinters</description>
		<content:encoded><![CDATA[<p>Surely this bone fragment could have penetrated the rib if the animal fell from a cliff to its death. there are lots of possible explanations and cyniscim but I feel that using this bone splinter to rescue Clovis theory is clutching at straws or splinters</p>
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		<title>By: Daniel J. Andrews</title>
		<link>http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/comment-page-1/#comment-61211</link>
		<dc:creator>Daniel J. Andrews</dc:creator>
		<pubDate>Wed, 26 Oct 2011 15:44:37 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/notrocketscience/?p=5607#comment-61211</guid>
		<description>&lt;blockquote&gt;They almost certainly did. Incidentally, when Waters mentioned the atlatl to me, I heard “axolotl”. That’s not a very good spearthrowing device at all!&lt;/blockquote&gt;

But ninjas used axolotls as lethal weapons to kill mammoths.

wiki.answers.com/Q/Is_an_axolotl_poisonous

Or am I skimming too fast again....?.....</description>
		<content:encoded><![CDATA[<blockquote><p>They almost certainly did. Incidentally, when Waters mentioned the atlatl to me, I heard “axolotl”. That’s not a very good spearthrowing device at all!</p></blockquote>
<p>But ninjas used axolotls as lethal weapons to kill mammoths.</p>
<p>wiki.answers.com/Q/Is_an_axolotl_poisonous</p>
<p>Or am I skimming too fast again&#8230;.?&#8230;..</p>
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		<title>By: Conor Myhrvold</title>
		<link>http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/comment-page-1/#comment-60815</link>
		<dc:creator>Conor Myhrvold</dc:creator>
		<pubDate>Sun, 23 Oct 2011 02:13:49 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/notrocketscience/?p=5607#comment-60815</guid>
		<description>Great post! My only minor criticism is that I disagree with the statement &quot;the spear-thrower must have had a powerful arm&quot;. I am doing my master&#039;s thesis at MIT on the biomechanics of javelin throwing. I don’t think a hunter would need a powerful arm to put a spear point in a mammoth bone, just a couple of steps, leverage and proper technique. Most of a spear throw&#039;s distance is a consequence of transferring energy from your legs, and your momentum on the move, to your arms… and not from the throwing arm itself. The actual arm strength is only helpful insofar as it is enough to successfully channel the energy from the legs (via your momentum) in the desired direction and not cause injury.</description>
		<content:encoded><![CDATA[<p>Great post! My only minor criticism is that I disagree with the statement &#8220;the spear-thrower must have had a powerful arm&#8221;. I am doing my master&#8217;s thesis at MIT on the biomechanics of javelin throwing. I don’t think a hunter would need a powerful arm to put a spear point in a mammoth bone, just a couple of steps, leverage and proper technique. Most of a spear throw&#8217;s distance is a consequence of transferring energy from your legs, and your momentum on the move, to your arms… and not from the throwing arm itself. The actual arm strength is only helpful insofar as it is enough to successfully channel the energy from the legs (via your momentum) in the desired direction and not cause injury.</p>
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		<title>By: yogi-one</title>
		<link>http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/comment-page-1/#comment-60789</link>
		<dc:creator>yogi-one</dc:creator>
		<pubDate>Sat, 22 Oct 2011 20:52:50 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/notrocketscience/?p=5607#comment-60789</guid>
		<description>“I’ve seen these thrown through old cars.”
Now THAT&#039;s  something I&#039;d really like to see a video of!</description>
		<content:encoded><![CDATA[<p>“I’ve seen these thrown through old cars.”<br />
Now THAT&#8217;s  something I&#8217;d really like to see a video of!</p>
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		<title>By: John H</title>
		<link>http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/comment-page-1/#comment-60675</link>
		<dc:creator>John H</dc:creator>
		<pubDate>Fri, 21 Oct 2011 23:41:25 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/notrocketscience/?p=5607#comment-60675</guid>
		<description>The angle as well as the targeted area of the projectile appears to be just right for a hunter&#039;s weapon. Maybe just a skoshe high.</description>
		<content:encoded><![CDATA[<p>The angle as well as the targeted area of the projectile appears to be just right for a hunter&#8217;s weapon. Maybe just a skoshe high.</p>
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		<title>By: amphiox</title>
		<link>http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/comment-page-1/#comment-60648</link>
		<dc:creator>amphiox</dc:creator>
		<pubDate>Fri, 21 Oct 2011 18:55:31 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/notrocketscience/?p=5607#comment-60648</guid>
		<description>&lt;blockquote&gt;I hate to think that after all he’s done, Haynes’ legacy may be as the last defender of an outdated Clovis orthodoxy.&lt;/blockquote&gt;

A common fate for many distinguished scientists with the &quot;misfortune&quot; of having a career sufficiently distinguished and sufficiently long.

Methinks, though, that few of the individual scientists in question, minded, or would trade it for the &quot;undistinguished and soon forgotten&quot;, or even the &quot;amazing, revolutionary, but brief with early flame-out&quot; career trajectories.

Ultimately, it means that perhaps we ought to rethink how (and to what) we should be assigning &quot;legacies&quot; to, if at all.</description>
		<content:encoded><![CDATA[<blockquote><p>I hate to think that after all he’s done, Haynes’ legacy may be as the last defender of an outdated Clovis orthodoxy.</p></blockquote>
<p>A common fate for many distinguished scientists with the &#8220;misfortune&#8221; of having a career sufficiently distinguished and sufficiently long.</p>
<p>Methinks, though, that few of the individual scientists in question, minded, or would trade it for the &#8220;undistinguished and soon forgotten&#8221;, or even the &#8220;amazing, revolutionary, but brief with early flame-out&#8221; career trajectories.</p>
<p>Ultimately, it means that perhaps we ought to rethink how (and to what) we should be assigning &#8220;legacies&#8221; to, if at all.</p>
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		<title>By: Ed Yong</title>
		<link>http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/comment-page-1/#comment-60641</link>
		<dc:creator>Ed Yong</dc:creator>
		<pubDate>Fri, 21 Oct 2011 17:02:06 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/notrocketscience/?p=5607#comment-60641</guid>
		<description>They almost certainly did. Incidentally, when Waters mentioned the atlatl to me, I heard &quot;axolotl&quot;. That&#039;s not a very good spearthrowing device at all!</description>
		<content:encoded><![CDATA[<p>They almost certainly did. Incidentally, when Waters mentioned the atlatl to me, I heard &#8220;axolotl&#8221;. That&#8217;s not a very good spearthrowing device at all!</p>
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		<title>By: Octavo Dia</title>
		<link>http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/comment-page-1/#comment-60632</link>
		<dc:creator>Octavo Dia</dc:creator>
		<pubDate>Fri, 21 Oct 2011 14:24:25 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/notrocketscience/?p=5607#comment-60632</guid>
		<description>The hunter could have also used a spear thrower such as an &lt;a href=&quot;http://en.wikipedia.org/wiki/Atlatl&quot; rel=&quot;nofollow&quot;&gt;atlatl&lt;/a&gt; to provide sufficient killing power.</description>
		<content:encoded><![CDATA[<p>The hunter could have also used a spear thrower such as an <a href="http://en.wikipedia.org/wiki/Atlatl" rel="nofollow">atlatl</a> to provide sufficient killing power.</p>
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		<title>By: Ed Yong</title>
		<link>http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/comment-page-1/#comment-60624</link>
		<dc:creator>Ed Yong</dc:creator>
		<pubDate>Fri, 21 Oct 2011 11:40:44 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/notrocketscience/?p=5607#comment-60624</guid>
		<description>In fairness to Haynes, he also said the following to me: 

The main point that the authors are trying to make is that there was hunting of large mammals pre-Clovis. All those things I like. People would have targeted the big mammals. As far as being 200-300 years earlier thn Clovis, that’s not a problem either. Clovis is a projectile-point style and there must have been people around before it was invented. 

@Tom - Fair point, well made. Will watch that in future. I love that I&#039;m MSM now.</description>
		<content:encoded><![CDATA[<p>In fairness to Haynes, he also said the following to me: </p>
<p>The main point that the authors are trying to make is that there was hunting of large mammals pre-Clovis. All those things I like. People would have targeted the big mammals. As far as being 200-300 years earlier thn Clovis, that’s not a problem either. Clovis is a projectile-point style and there must have been people around before it was invented. </p>
<p>@Tom &#8211; Fair point, well made. Will watch that in future. I love that I&#8217;m MSM now.</p>
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		<title>By: Eleanor</title>
		<link>http://blogs.discovermagazine.com/notrocketscience/2011/10/20/early-hunters-killed-mastodons-with-mastodons-also-you-can-chuck-a-bone-spear-through-a-car-who-knew/comment-page-1/#comment-60613</link>
		<dc:creator>Eleanor</dc:creator>
		<pubDate>Fri, 21 Oct 2011 08:56:59 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/notrocketscience/?p=5607#comment-60613</guid>
		<description>I dunno, pushing mastodons towards extinction using  spears fashioned from their murdered brethren seems pretty gittish to me.</description>
		<content:encoded><![CDATA[<p>I dunno, pushing mastodons towards extinction using  spears fashioned from their murdered brethren seems pretty gittish to me.</p>
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