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	<title>alligator lizards &#8211; BIOENGINEER.ORG</title>
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		<title>Broader Heads, Not Bigger Bodies: Male Combat Shapes Endangered Guatemalan Alligator Lizard</title>
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		<pubDate>Sat, 17 Oct 2026 18:08:28 +0000</pubDate>
				<category><![CDATA[Biology]]></category>
		<category><![CDATA[Abronia campbelli]]></category>
		<category><![CDATA[alligator lizards]]></category>
		<category><![CDATA[allometry]]></category>
		<category><![CDATA[arboreal reptiles]]></category>
		<category><![CDATA[bite force]]></category>
		<category><![CDATA[caudal autotomy]]></category>
		<category><![CDATA[endangered species]]></category>
		<category><![CDATA[Guatemala]]></category>
		<category><![CDATA[Herpetozoa]]></category>
		<category><![CDATA[male combat]]></category>
		<category><![CDATA[sexual selection]]></category>
		<category><![CDATA[sexual size dimorphism]]></category>
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					<description><![CDATA[A study of 54 Campbell's Alligator Lizards in Guatemala found males and females are similar in body size and tail loss, but males have heads roughly 19 percent wider, pointing to sexual selection through combat and mate-grasping.]]></description>
		
		
		
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