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	<title>bird evolution &#8211; Greg Laden&#039;s Blog</title>
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		<title>The Early Bird Crushes The Egg</title>
		<link>https://gregladen.com/blog/2018/03/23/early-bird-crushes-egg/</link>
					<comments>https://gregladen.com/blog/2018/03/23/early-bird-crushes-egg/#comments</comments>
		
		<dc:creator><![CDATA[Greg Laden]]></dc:creator>
		<pubDate>Sat, 24 Mar 2018 00:14:14 +0000</pubDate>
				<category><![CDATA[Evolutionary Biology]]></category>
		<category><![CDATA[Palaeontology]]></category>
		<category><![CDATA[bird evolution]]></category>
		<category><![CDATA[egg evolution]]></category>
		<category><![CDATA[Evolution]]></category>
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					<description><![CDATA[Model I birds, the kind that lived during the Age of the Other Dinosaurs, may not have brooded their eggs. Today, birds sit on their eggs in such a way that the adult bird&#8217;s down surrounds the ovoids, and warmth from the adult can keep the eggs at a constant temperature. Depending on the bird, &#8230; <a href="https://gregladen.com/blog/2018/03/23/early-bird-crushes-egg/" class="more-link">Continue reading <span class="screen-reader-text">The Early Bird Crushes The Egg</span> <span class="meta-nav">&#8594;</span></a>]]></description>
		
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