Stabbing Slinkers: Tusk Evolution Among Artiodactyls
Stabbing Slinkers: Tusk Evolution Among Artiodactyls
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DOI：
10.1007/s10914-018-9453-x
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发表时间：
2020-06-01
影响因子：
1.9
通讯作者：
Stankowich, Theodore
中科院分区：
文献类型：
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作者：
Cabrera, Doreen;Stankowich, Theodore
战斗武器，包括精致的角、鹿角和复杂的牙齿，在哺乳动物中独立进化了好几次。虽然很明显，象牙和象牙状的牙齿主要是在雄性中出现的，用于雌雄之间的战斗，但尚不清楚是什么生态因素有利于象牙的保留或重新进化。我们研究了偶蹄动物的象牙进化模式，同时探索了可能有利于它们使用其他头骨武器（如鹿角、角）的特定生态因素。我们发现，在男性中，小的(
Combat weaponry, including elaborate horns and antlers and complex dentition, evolved independently several times among mammals. While it is evident that tusk and tusk-like dentition have emerged primarily among males for intrasexual combat, it is unclear what ecological factors favor the retention or re-evolution of tusks. We investigated patterns of tusk evolution in artiodactyls while exploring specific ecological factors that might favor their use over other cranial weapons (e.g., antlers, horns). We show that among males, small (